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  • Supporters board a bus at Lincoln Land Community College for...

    Michael Tercha, Chicago Tribune

    Supporters board a bus at Lincoln Land Community College for a short ride to the 32nd annual Democratic Evening on the Lake fundraiser May 8, 2012, at Island Bay Yacht Club in Springfield.

  • Speaker Michael Madigan stands over lawmakers on the House floor...

    E. Jason Wambsgans / Chicago Tribune

    Speaker Michael Madigan stands over lawmakers on the House floor before Gov. J.B. Pritzker delivers his first budget address Feb. 20, 2019, at the Illinois State Capitol in Springfield.

  • Former House Speaker Michael Madigan talks to reporters after a...

    Brian Cassella / Chicago Tribune

    Former House Speaker Michael Madigan talks to reporters after a meeting where his replacement, Angie Guerrero-Cuellar, was chosen Feb. 25, 2021, at the Balzekas Museum in West Lawn.

  • House Speaker Michael Madigan talks with state Rep. Elaine Nekritz...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan talks with state Rep. Elaine Nekritz as they prepare to present a state pension reform plan to the Personnel and Pensions Committee on May 29, 2012.

  • House Speaker Michael Madigan, center, listens after speaking to the...

    William DeShazer, Chicago Tribune

    House Speaker Michael Madigan, center, listens after speaking to the Personnel and Pensions Committee meeting May 26, 2011.

  • Speaker Michael Madigan arrives for the Illinois House Democratic caucus...

    Zbigniew Bzdak / Chicago Tribune

    Speaker Michael Madigan arrives for the Illinois House Democratic caucus during a spring session of the General Assembly at the Illinois Capitol in Springfield in 2019.

  • House Speaker Michael Madigan convenes the House on June 26,...

    Charles Osgood, Chicago Tribune

    House Speaker Michael Madigan convenes the House on June 26, 2004.

  • House Speaker Michael Madigan listens to the debate about Resolution...

    Abel Uribe, Chicago Tribune

    House Speaker Michael Madigan listens to the debate about Resolution 1650, which he co-sponsored, as the process of impeaching Gov. Rod Blagojevich begins Dec. 15, 2008.

  • House Speaker Michael Madigan watches as the Illinois House votes...

    Zbigniew Bzdak / Chicago Tribune

    House Speaker Michael Madigan watches as the Illinois House votes on a bill raising statewide minimum wage during a session at the State Capitol in Springfield on Feb. 14, 2019.

  • House Speaker Michael Madigan, from left, Gov. Pat Quinn and...

    Nancy Stone, Chicago Tribune

    House Speaker Michael Madigan, from left, Gov. Pat Quinn and Senate leader John Cullerton sit next to one another Aug 19, 2009, at Governor's Day at the Illinois State Fair.

  • Gov. James Thompson, right, and House Speaker Michael Madigan in...

    Chuck Berman / Chicago Tribune

    Gov. James Thompson, right, and House Speaker Michael Madigan in Madigan's office to work out school reform on July 1, 1988, in Springfield.

  • House Speaker Michael Madigan waits for official notice from the...

    Nancy Stone, Chicago Tribune

    House Speaker Michael Madigan waits for official notice from the Senate that they have voted to form a conference committee during a special session in Springfield on June 19, 2013.

  • A broadcast news reporter knocks on the door at the...

    John J. Kim / Chicago Tribune

    A broadcast news reporter knocks on the door at the home of former Illinois House Speaker Michael Madigan in the West Lawn neighborhood on March 2, 2022, in Chicago.

  • House Speaker Michael Madigan, left, celebrates with state Rep. Jay...

    Stacey Wescott, Chicago Tribune

    House Speaker Michael Madigan, left, celebrates with state Rep. Jay Hoffman on July 24, 2004, after both houses of the legislature passed the 2005 budget after going 51 days into special session.

  • Illinois House Speaker Michael Madigan after a meeting with Gov.-elect Bruce...

    Jose M. Osorio / Chicago Tribune

    Illinois House Speaker Michael Madigan after a meeting with Gov.-elect Bruce Rauner and Senate President John Cullerton in Chicago on Nov. 13, 2014.

  • House Speaker Michael Madigan, left, and Senate President John Cullerton...

    Abel Uribe, Chicago Tribune

    House Speaker Michael Madigan, left, and Senate President John Cullerton confer March 18, 2009, as Gov. Pat Quinn delivers his proposal for the 2010 state budget in the House.

  • House Speaker Michael Madigan, right, talks with Earl Oliver, president...

    Carl Wagner, Chicago Tribune

    House Speaker Michael Madigan, right, talks with Earl Oliver, president and executive secretary-treasurer of the Chicago Regional Council of Carpenters, in Oliver's office on Oct. 16, 1998.

  • House Speaker Michael Madigan greets AFSCME's Henry Bayer along with...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan greets AFSCME's Henry Bayer along with other opposition members before he presents a state pension reform plan to the Personnel and Pensions Committee on May 29, 2012.

  • Newly elected House GOP Leader Tom Cross, left, and House...

    John Lee, Chicago Tribune

    Newly elected House GOP Leader Tom Cross, left, and House Speaker Michael Madigan chat Nov. 21, 2002, before the start of session at the Capitol in Springfield.

  • Former Illinois Speaker of the House Michael Madigan arrives to...

    Jose M. Osorio / Chicago Tribune

    Former Illinois Speaker of the House Michael Madigan arrives to his office in Chicago on Oct. 18, 2021.

  • Mayor Richard M. Daley, at podium, and House Speaker Mike...

    Phil Greer, Chicago Tribune

    Mayor Richard M. Daley, at podium, and House Speaker Mike Madigan, right, on Sept. 26, 2000, call for a bill in the fall session of the Illinois House and Senate to make gun shop owners licensed.

  • Gov. Pat Quinn, from left, House Speaker Mike Madigan and...

    Alex Garcia, Chicago Tribune

    Gov. Pat Quinn, from left, House Speaker Mike Madigan and Illinois Attorney General Lisa Madigan attend a signing ceremony for legislation to bring greater transparency to Illinois government on Aug. 16, 2009.

  • House Speaker Michael Madigan answers questions at a press availability...

    Chuck Berman, Chicago Tribune

    House Speaker Michael Madigan answers questions at a press availability Jan. 24, 2012, after he addressed the fifth annual Elmhurst College Governmental Forum.

  • House Speaker Michael Madigan shares the stage with Gov. Rod...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan shares the stage with Gov. Rod Blagojevich and state Sen. Debbie Halvorson, D-Chicago Heights, on Aug. 15, 2007, at the Democratic rally at the Illinois State Fairgrounds for Governor's Day in Springfield.

  • Speaker of the House Michael Madigan on his 70th birthday...

    E. Jason Wambsgans / Chicago Tribune

    Speaker of the House Michael Madigan on his 70th birthday on the House floor at the Illinois State Capitol in Springfield on April 19, 2012.

  • Gov. Rod Blagojevich, from left, Chicago Mayor Richard M. Daley...

    Charles Osgood, Chicago Tribune

    Gov. Rod Blagojevich, from left, Chicago Mayor Richard M. Daley and House Speaker Michael Madigan enjoy Democratic Day on Aug. 16, 2006, at the Illinois State Fair in Springfield

  • House Speaker Michael Madigan speaks Aug. 17, 2017, at the...

    Brian Cassella / Chicago Tribune

    House Speaker Michael Madigan speaks Aug. 17, 2017, at the annual Democratic Chairman's Brunch in Springfield.

  • Speaker Michael Madigan oversees House proceedings Jan. 6, 2011, at...

    William DeShazer, Chicago Tribune

    Speaker Michael Madigan oversees House proceedings Jan. 6, 2011, at the state Capitol.

  • House Speaker Michael Madigan, left, introduces newly elected Gov. Rod...

    Jose M. Osorio, Chicago Tribune

    House Speaker Michael Madigan, left, introduces newly elected Gov. Rod Blagojevich in the House gallery in Springfield on Dec. 4, 2002.

  • House Speaker Michael Madigan, D-Chicago, left, greets supporters as they...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan, D-Chicago, left, greets supporters as they arrive for the 32nd Annual Democratic Evening on the Lake fundraiser May 8, 2012, at Island Bay Yacht Club in Springfield

  • House Speaker Michael Madigan introduces the pension reform bill Dec....

    Zbigniew Bzdak, Chicago Tribune

    House Speaker Michael Madigan introduces the pension reform bill Dec. 3, 2013.

  • Rod Blagojevich, center, shakes hands with Michael Madigan after his...

    Abel Uribe, Chicago Tribune

    Rod Blagojevich, center, shakes hands with Michael Madigan after his speech at the Illinois State Fair on Aug. 15, 2002.

  • House Speaker Michael Madigan, right, tries to get the attention...

    Charles Osgood, Chicago Tribune

    House Speaker Michael Madigan, right, tries to get the attention of the acting speaker June 24, 2004, with the help of his spokesman, Steve Brown, left.

  • House Speaker Michael Madigan, left, speaks with House Majority Leader...

    Antonio Perez / Chicago Tribune

    House Speaker Michael Madigan, left, speaks with House Majority Leader Rep. Greg Harris before Gov. J.B. Pritzker's budget address in Springfield on Feb. 19, 2020.

  • Michael Madigan speaking to the media on June 30, 2015.

    Zbigniew Bzdak / Chicago Tribune

    Michael Madigan speaking to the media on June 30, 2015.

  • House Speaker Michael Madigan leaves his Capitol office Feb. 28,...

    Chris Walker, Chicago Tribune

    House Speaker Michael Madigan leaves his Capitol office Feb. 28, 2013.

  • Illinois House Speaker Michael Madigan and his wife, Illinois Arts...

    Antonio Perez / Chicago Tribune

    Illinois House Speaker Michael Madigan and his wife, Illinois Arts Council Agency Chairwoman Shirley Madigan, kiss after she testified in support of the Obama presidential library being located in Chicago on April 17, 2014.

  • Former Illinois Speaker Michael Madigan departs from his lawyers' office,...

    Brian Cassella / Chicago Tribune

    Former Illinois Speaker Michael Madigan departs from his lawyers' office, March 9, 2022, after making his first virtual court appearance for his indictment.

  • Gov. Pat Quinn, from left, House Speaker Michael Madigan, Ald....

    Abel Uribe, Chicago Tribune

    Gov. Pat Quinn, from left, House Speaker Michael Madigan, Ald. Ed Burke, and state Sen. Martin Sandoval attend a groundbreaking for a new UNO high school July 12, 2012, in Chicago.

  • House Speaker Michael Madigan, center, along with his research and...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan, center, along with his research and appropriations director, John Lowder, left, and state Rep. Elaine Nekritz, D-Northbrook, presents a state pension reform plan to the Personnel and Pensions Committee on May 29, 2012.

  • House Speaker Michael Madigan congratulates Gov. J.B. Pritzker after Pritzker's...

    E. Jason Wambsgans / Chicago Tribune

    House Speaker Michael Madigan congratulates Gov. J.B. Pritzker after Pritzker's first budget address at the Illinois State Capitol in 2019.

  • Gov. James Thompson, from left, poses with House Speaker Michael...

    Chicago Tribune

    Gov. James Thompson, from left, poses with House Speaker Michael Madigan and Mayor Harold Wahington on Oct. 19, 1983, before their meeting on the Regional Transportation Authority. They are trying to reach a deal on reorganization of the agency in exchange for a $75 million state subsidy.

  • House Speaker Michael Madigan talks to Rep. Carol Sente on...

    Zbigniew Bzdak, Chicago Tribune

    House Speaker Michael Madigan talks to Rep. Carol Sente on Dec. 3, 2013, after a vote on a bill to overhaul the state government worker pension system.

  • House Speaker Michael Madigan and his wife, Shirley, join supporters...

    Heather Stone, Chicago Tribune

    House Speaker Michael Madigan and his wife, Shirley, join supporters as their daughter Lisa Madigan kicks off her campaign for state attorney general Dec. 2, 2001.

  • House Speaker Michael Madigan talks with House Republican Leader Jim...

    Zbigniew Bzdak / Chicago Tribune

    House Speaker Michael Madigan talks with House Republican Leader Jim Durkin before a debate at Illinois House to vote on a bill raising statewide minimum wage during a session at the State Capitol in Springfield on Feb. 14, 2019.

  • Michael Madigan and daughter Nicole tour the Science Academy of...

    Antonio Perez, Chicago Tribune

    Michael Madigan and daughter Nicole tour the Science Academy of Chicago during its grand opening event March 8, 2013, in Mount Prospect.

  • Committeeman Michael Madigan, 13th Ward, speaks before the park board...

    Alton Kaste, Chicago Tribune

    Committeeman Michael Madigan, 13th Ward, speaks before the park board July 28, 1970.

  • Senate President John Cullerton and House Speaker Michael Madigan talk...

    Zbigniew Bzdak / Chicago Tribune

    Senate President John Cullerton and House Speaker Michael Madigan talk to the media after meeting with Gov. Bruce Rauner on the last day of the Illinois General Assembly at the State Capitol in Springfield on May 31, 2016.

  • Speaker Michael Madigan works the floor as the Illinois House...

    E. Jason Wambsgans / Chicago Tribune

    Speaker Michael Madigan works the floor as the Illinois House convenes at the Bank of Springfield Center on Jan. 8, 2021.

  • Illinois Comptroller Judy Baar Topinka, center, talks with House Speaker...

    Michael Tercha, Chicago Tribune

    Illinois Comptroller Judy Baar Topinka, center, talks with House Speaker Michael Madigan and his wife, Shirley, during the inaugural ceremony for constitutional officers on Jan. 10, 2011.

  • Michael Madigan arrives to his West Lawn home on March...

    Antonio Perez / Chicago Tribune

    Michael Madigan arrives to his West Lawn home on March 2, 2022 before it was announced he was indicted on federal racketeering charges.

  • House Speaker Michael Madigan and Senate President John Cullerton on...

    Seth Perlman / AP

    House Speaker Michael Madigan and Senate President John Cullerton on the floor of the General Assembly in Springfield on June 16, 2015.

  • House Speaker Michael Madigan, left, greets Gov. Rod Blagojevich on...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan, left, greets Gov. Rod Blagojevich on Aug. 18, 2004, during the Governor's Day Rally at the Illinois State Fairgrounds.

  • Chicago Mayor Rahm Emanuel, from left, Secretary of State Jesse...

    Nancy Stone, Chicago Tribune

    Chicago Mayor Rahm Emanuel, from left, Secretary of State Jesse White, Gov. Pat Quinn and House Speaker Michael Madigan are represented in the roll call vote for Barack Obama at the Democratic National Convention on Sept. 5, 2012, in Charlotte, N.C.

  • Gov. Pat Quinn, left, and House Speaker Michael Madigan testify...

    Terrence Antonio James, Chicago Tribune

    Gov. Pat Quinn, left, and House Speaker Michael Madigan testify on campaign finance reform May 29, 2009, in front of a House committee at the Capitol in Springfield.

  • As Illinois legislators continued work on a state budget, House...

    Chris Walker, Chicago Tribune

    As Illinois legislators continued work on a state budget, House Speaker Michael Madigan took time to attend an AFL-CIO labor rally April 24, 2002, at the Capitol.

  • Former Illinois House Speaker Michael Madigan speaks during a political...

    Brian Cassella / Chicago Tribune

    Former Illinois House Speaker Michael Madigan speaks during a political meeting Feb. 25, 2021, at the Balzekas Museum in West Lawn.

  • House Speaker Michael Madigan listens Dec. 3, 2013, after introducing...

    Zbigniew Bzdak, Chicago Tribune

    House Speaker Michael Madigan listens Dec. 3, 2013, after introducing a bill to overhaul the state government worker pension system.

  • House Speaker Michael Madigan, left, and Senate President John Cullerton...

    Michael Tercha, Chicago Tribune

    House Speaker Michael Madigan, left, and Senate President John Cullerton confer before Gov. Pat Quinn delivers his budget address to a combined session of the Illinois Legislature on Feb. 16, 2011.

  • House Speaker Michael Madigan during the General Assembly fall session on...

    Zbigniew Bzdak / Chicago Tribune

    House Speaker Michael Madigan during the General Assembly fall session on Dec. 3, 2014.

  • House Speaker Michael Madigan confers with Sen. Emil Jones in...

    John Lee, Chicago Tribune

    House Speaker Michael Madigan confers with Sen. Emil Jones in the hallway outside a Senate Executive Committee meeting May 28, 2002.

  • Speaker Michael Madigan listens to the debate in the Illinois...

    Charles Osgood, Chicago Tribune

    Speaker Michael Madigan listens to the debate in the Illinois House on Jan. 17, 2008, as it takes up the transportation bill with the governor's free rides for seniors.

  • House Speaker Michael Madigan appears on the floor as the...

    E. Jason Wambsgans / Chicago Tribune

    House Speaker Michael Madigan appears on the floor as the Illinois House convenes at the Bank of Springfield Center on Jan. 8, 2021. Lawmakers returned for a lame-duck session that marks the first time they convened in Springfield since a May special session.

  • House Speaker Michael Madigan, right, talks with Chicago Mayor Rahm...

    Chris Walker, Chicago Tribune

    House Speaker Michael Madigan, right, talks with Chicago Mayor Rahm Emanuel in Gov. Pat Quinn's office July 26, 2011, at the James R. Thompson Center.

  • Former Illinois House Speaker Michael Madigan talks during a meeting...

    Brian Cassella / Chicago Tribune

    Former Illinois House Speaker Michael Madigan talks during a meeting where his replacement, Angie Guerrero-Cuellar, was chosen Feb. 25, 2021, at the Balzekas Museum in West Lawn.

  • House Speaker Michael Madigan heads a committee hearing in January...

    José Moré, Chicago Tribune

    House Speaker Michael Madigan heads a committee hearing in January 2007 regarding a rate hike requested by ComEd.

  • Committeeman Michael Madigan, circa 1970.

    Chicago Tribune

    Committeeman Michael Madigan, circa 1970.

  • House Speaker Michael Madigan talks about the budget after meeting...

    Heather Stone, Chicago Tribune

    House Speaker Michael Madigan talks about the budget after meeting with the governor May 24, 2001, at the state Capitol in Springfield.

  • Senate President John Cullerton, left, and House Speaker Michael Madigan...

    Michael Tercha, Chicago Tribune

    Senate President John Cullerton, left, and House Speaker Michael Madigan tell a reporter there is no bad blood between them after a meeting with Gov. Pat Quinn on June 10, 2013, to discuss pension reform legislation.

  • Gov. Rod Blagojevich greets House Speaker Michael Madigan and Senate...

    Charles Osgood, Chicago Tribune

    Gov. Rod Blagojevich greets House Speaker Michael Madigan and Senate President Emil Jones on Feb. 16, 2005, before his speech delivering his budget to a joint session in the House chambers.

  • House Speaker Michael Madigan listens to a debate on the...

    Zbigniew Bzdak / Chicago Tribune

    House Speaker Michael Madigan listens to a debate on the House floor in 2019.

  • House Speaker Michael Madigan in the State Capitol building in...

    Stacey Wescott / Chicago Tribune

    House Speaker Michael Madigan in the State Capitol building in Springfield on Jan. 24, 2017.

  • House Speaker Michael Madigan, right, chats with Senate President John...

    Stacey Wescott / Chicago Tribune

    House Speaker Michael Madigan, right, chats with Senate President John Cullerton before Republican Gov. Bruce Rauner gives his State of the State speech at the Illinois State Capitol on Jan. 31, 2018 in Springfield.

  • Minority Leader Tom Cross, left, joined by Speaker Michael Madigan,...

    E. Jason Wambsgans, Chicago Tribune

    Minority Leader Tom Cross, left, joined by Speaker Michael Madigan, presents pension reform legislation Dec. 15, 2011, before the House Personnel and Pensions Committee.

  • Chicago Mayor Rahm Emanuel is applauded by House Speaker Michael...

    Nancy Stone, Chicago Tribune

    Chicago Mayor Rahm Emanuel is applauded by House Speaker Michael Madigan Sept. 5, 2012, as he finishes speaking at the Illinois delegation breakfast in Charlotte, N.C.

  • House Speaker Michael Madigan holds a news conference at the...

    Zbigniew Bzdak / Chicago Tribune

    House Speaker Michael Madigan holds a news conference at the Capitol in Springfield on June 30, 2015.

  • Gov. George Ryan, left, leading a delegation of business, cultural...

    Chris Walker, Chicago Tribune

    Gov. George Ryan, left, leading a delegation of business, cultural and humanitarian leaders along with senior state officials on a trip to Cuba, joins in lunch conversation on the plane Oct. 23, 1999, with House Speaker Michael Madigan.

  • Chicago Mayor Richard M. Daley, left, chats with House Speaker...

    José Moré, Chicago Tribune

    Chicago Mayor Richard M. Daley, left, chats with House Speaker Michael Madigan as they look over the newly renovated House chambers May 16, 2007, in Springfield.

  • Former Illinois House Speaker Michael Madigan walks on his second-floor...

    Antonio Perez/Chicago Tribune

    Former Illinois House Speaker Michael Madigan walks on his second-floor patio at his Chicago home on March 3, 2022.

  • House Speaker Michael Madigan chats with Rep. Calvin Giles on...

    Abel Uribe, Chicago Tribune

    House Speaker Michael Madigan chats with Rep. Calvin Giles on March 24, 2004, during a hearing about the governor's plan to take over the Illinois State Board of Education.

  • House Speaker George Ryan, from left, Senate President Phillip Rock,...

    Chicago Tribune

    House Speaker George Ryan, from left, Senate President Phillip Rock, Chicago Mayor Jane Byrne, Sen. James Pate Philip and House Minority Leader Michael Madigan on June 4, 1981.

  • House Speaker Michael Madigan acknowledges applause from Sen. Debbie Halvorson,...

    Scott Strazzante, Chicago Tribune

    House Speaker Michael Madigan acknowledges applause from Sen. Debbie Halvorson, foreground, and the rest of the Senate on May 31, 2003, at the state Capitol.

  • Speaker Michael Madigan on the House floor May 31, 2013.

    E. Jason Wambsgans, Chicago Tribune

    Speaker Michael Madigan on the House floor May 31, 2013.

  • House Speaker Michael Madigan walks through the state Capitol in...

    Zbigniew Bzdak, Chicago Tribune

    House Speaker Michael Madigan walks through the state Capitol in Springfield on Dec. 3, 2013, to vote on a bill to overhaul the state government worker pension system.

  • House Speaker Michael Madigan stands on the podium May 31,...

    Nancy Stone, Chicago Tribune

    House Speaker Michael Madigan stands on the podium May 31, 2009, while Rep. John Fritchey speaks in favor of the tax bill.

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When federal prosecutors tied former House Speaker Michael Madigan into a conspiracy case involving AT&T this month, they included an insider at the heart of the scandal with an overarching view of Madigan’s once-vaunted statewide Democratic organization and his secretive moves at the Capitol.

That insider is Tom Cullen.

Tom Cullen, 59, a lobbyist and former political director for House Speaker Michael Madigan.
Tom Cullen, 59, a lobbyist and former political director for House Speaker Michael Madigan.

Now, the Tribune has learned that Cullen, a lobbyist who played political point man for years on Madigan’s government staff, has testified before the ongoing federal grand jury looking into broad aspects of Madigan’s political world, which prosecutors allege included a criminal enterprise aimed at providing personal financial rewards for Madigan and his associates.

Any details Cullen offered in his testimony about Madigan and his former associates are still secret, but the blanks he could have filled in as part of Madigan’s famously tight inner circle are manifold.

The Tribune first revealed earlier this year that Cullen and his lobbying firm were at the center of an alleged scheme by AT&T Illinois to pay thousands of dollars to a former member of Madigan’s House leadership team in exchange for the speaker’s help on legislation the telephone giant wanted passed in Springfield.

Earlier this month, Cullen was named by the Tribune and other news outlets as “Intermediary 4? in a superseding indictment against Madigan and his longtime confidant, Michael McClain, adding the AT&T allegations.

Cullen has not been charged in the case, even though his firm allegedly served as the go-between for the secret payments.

His lawyer, Thomas Anthony Durkin, declined to comment Friday on his client’s position.

To be sure, Cullen’s legal situation is a stark contrast to other Madigan loyalists caught up in the expansive probe.

McClain, 74, of Quincy, one of Madigan’s longest and closest confidants, rebuffed several efforts to get him to flip both before and after being indicted in 2020 on separate charges alleging he orchestrated a scheme by utility giant Commonwealth Edison to buy the speaker’s influence. That case is currently set for trial in March.

Another longtime member of the Madigan brain trust, former chief of staff Tim Mapes, was granted immunity from prosecution but ended up being charged with perjury after prosecutors say he lied during his March 31, 2021, grand jury appearance when asked about Madigan’s relationship with McClain.

Madigan, 80, of Chicago, has pleaded not guilty and denied any wrongdoing. He said in a written statement after being charged that prosecutors were “attempting to criminalize” legal political actions such as lobbying and job recommendations — an argument sure to arise if the case goes to trial.

Madigan’s lead attorney, Sheldon Zenner, declined to comment Friday on Cullen’s role.

For decades, Tom Cullen was one of the Madigan machine’s key engineers, holding a position of high confidence in a small group of Madigan’s confidants, whose members one longtime political insider said is so closely guarded that only the “people in the circle know who the people in the circle are.”

Cullen held the all-important position of director of Madigan’s House issues development staff, the political arm of the speaker’s government operations. In that role, Cullen became essential in screening and recruiting legislative candidates as well as determining their paths to victory.

When the speaker’s daughter Lisa Madigan ran for attorney general, Cullen was among the small cadre of people, including McClain, who met frequently to help steer her successful statewide race.

Democrats and Republicans alike acknowledged Cullen’s political acumen — even when they differed with him. In his years at the Capitol, he was known to tell politicians or lobbyists ahead of time how he planned to beat them on a legislative issue rather than stab them in the back, like many in the cutthroat world of Springfield did.

“He would always stab you in the front with a smile,” explained one longtime Democratic strategist with years of statehouse experience.

Unlike some, Cullen was friendly to his counterparts across the aisle, garnering a reputation as a “decent guy in a dirty business,” as one Republican veteran put it. But there was no doubt he was a Madigan loyalist, demonstrating a special brand of political fealty from the 1990s on the speaker’s staff and on up through his successful career as a lobbyist.

As a key political point man for Madigan when he lost the speakership in the 1994 nationwide Republican tidal wave, Cullen became one of the staffers most focused on Democrats retaking the House.

Republican state Rep. Lee Daniels remained speaker for just that one term, the only two years Madigan’s speakership was interrupted in his nationwide record 36 years of running a legislative chamber.

After Madigan retook the speakership, Cullen eventually became a contract lobbyist with an enviable book of clients and remained a fixture at the Capitol.

“He earned Madigan’s respect through his past work,” said one Republican statehouse source, who requested anonymity. “There is only a handful of people who get Madigan’s respect. Tom Cullen was one of them.”

Cullen represented a group of top political people who had graduated from Madigan’s government operations but remained intrinsic in the speaker’s obsession to stay in charge of the House.

“When you are in that rarefied air, where you have become one of the speaker’s trusted political confidants, it doesn’t matter how many clients you have or who those clients are because your first loyalty is the speaker,” the longtime Democratic strategist explained. “But for the speaker you wouldn’t have those clients.”

Like others in Madigan’s sphere, Cullen throughout his lobbying career was called upon to work on campaigns to help the speaker stay in power.

Cullen also found himself as a key political operative in headlines about Madigan over the years.

In 2014, for instance, Cullen, while lobbying for Metra, appeared in a legislative inspector general’s report focused on whether Madigan had wielded undue influence in trying to get a promotion for a Metra employee who served as a precinct captain in Madigan’s 13th Ward political operations.

Cullen also turned up in the aftermath of one of the more spectacular chapters in how Madigan reacted to #MeToo scandals among his wayward staff.

When campaign staffer Alaina Hampton called out Madigan’s longtime top lieutenant Kevin Quinn in 2018 over his alleged sexual harassment, Madigan ousted Quinn from the speaker’s state government and political operations.

But Cullen later showed up among five current and former friendly utility lobbyists who set up contracts and sent checks to Quinn upon the request of McClain, who orchestrated the payments to help give the ousted aide a softer financial landing, according to emails and bank records the Tribune obtained in 2019.

In one of those emails, the Tribune disclosed, McClain warned Quinn of the delicate political consequences if the payments that Cullen and others had made were to become widely known.

“These men are sticking their necks out knowing full well if it goes public before you are exonerated they will get the full blast from the ‘MeToo’ movement. So please honor the confidentiality,” McClain wrote.

It would soon be revealed that those payments were just one part of a much larger federal criminal investigation into ComEd’s alleged efforts to influence Madigan’s official actions.

Cullen’s list of high-octane clients has ranged from health care and pharmaceuticals to gambling and utilities. He once represented ComEd but ended up leaving years ago in a political flap, and, perhaps fortuitously, spent the last several years as a lobbyist for Ameren, the downstate utility that he still lists as a client.

Instead, the client that eventually landed Cullen in hot water was AT&T Illinois, a subsidiary of the national telephone giant that, like ComEd, hired a stable of lobbyists and consultants with ties to Madigan to push for legislation in Springfield.

According to a statement of facts admitted by AT&T Illinois in a deferred prosecution agreement, Madigan’s office in 2015 had blocked a controversial bill that the telephone company was pushing to end costly landline service to its nearly 1.2 million customers.

After that defeat, an executive circulated a “lessons learned” memo that contained one section headed, “Speaker Madigan.” The memo stated AT&T had not been as “helpful” as ComEd when “requests” were made from the speaker’s camp, according to the statement.

Two years later, AT&T found a way to help, according to the statement. In February 2017, the company launched a plan to kick money to retiring Democratic state Rep. Edward Acevedo, who had served as Madigan’s assistant majority leader in the House and was starting his own lobbying business, according to the statement, which identified Acevedo only as “FR-1.”

In an email exchange that March, AT&T Illinois’ director of legislative affairs asked two of the company’s executives if they were “100% certain” they would get credit “from the powers that be” if the payments were made through an intermediary, rather than directly to Acevedo.

“I would hope that as long as we explain the approach to McClain and (the associate) gets the money then the ultimate objective is reached,” one of the executives wrote back, according to the statement.

That’s when Cullen allegedly stepped in. On April 5, 2017, the AT&T legislative affairs director sent another email directing an employee to increase the payments the company was making to Cullen & Associates, identified in the statement only as “Company 4.”

The email stated the funds would allow Cullen to “bring on an additional asset” who would “make a difference with House Democratic Leadership views on advancing AT&T strategies” for the landline legislation, according to the statement.

Later that month, according to AT&T’s admissions in court, Cullen attended a meeting with AT&T employees and Acevedo to discuss a cover story for the payments: to “prepare a report on the political dynamics of the General Assembly’s and Chicago City Council’s Latino Caucuses.”

Acevedo balked at first, saying the payments were too low. But he agreed to the deal after McClain stepped in and said the amount was “sufficient.”

From June 2017 to January 2018, AT&T made nine monthly payments of $10,000 to Cullen’s firm, with $2,500 from each installment earmarked for Acevedo, for a total of $22,500. The report was never done and Acevedo did no other work on AT&T’s behalf, according to the statement in the federal case.

Meanwhile, after a protracted fight, the landline bill passed during the final hours of the spring 2017 legislative session — with Madigan’s direct assistance, according to legislative records and the statement of facts agreed to by AT&T.

Acevedo, 59, was not charged as part of the alleged AT&T scheme. He was sentenced earlier this year to a year in federal prison on tax charges related to the ComEd probe. He is serving his sentence at a medium-security federal prison in North Carolina and is due to be released on Dec. 5. His attorney has declined to comment.