CHICAGO (AP) — A Chicago Democrat who once set much of Illinois’ political agenda as the longest-serving legislative leader in U.S. history was convicted of conspiracy, bribery and wire fraud Wednesday in a split verdict in his high-profile corruption trial.

Jurors convicted former Illinois House Speaker Michael Madigan of 10 counts and acquitted him of seven in a bribery case that led to the downfall of a man who was nicknamed the “Velvet Hammer” for his forceful yet quiet leadership style. The jury could not reach a decision on six counts, including an overarching racketeering conspiracy charge, after deliberations that lasted more than 10 days.

Acting U.S. Attorney Morris Pasqual called it a “historic” conviction, ranking high among top public corruption cases tried in Chicago’s federal courthouse. He said that Illinois residents have a right to trust in their government

“Michael Madigan breached and violated that trust over and over again,” he said.

Madigan, who had taken the stand during the trial to strongly deny all wrongdoing, left the courthouse without addressing reporters after the verdict was announced. Television cameras followed the former speaker — flanked by his attorneys — as he walked outside into the falling snow.

Madigan, who was speaker for more than three decades and once led the Democratic Party of Illinois, was found guilty of conspiracy, bribery, wire fraud and other counts related to schemes involving the state’s largest utility, ComEd, and efforts to get a Chicago alderman a state board job. Jurors acquitted him or deadlocked on counts related to an apartment project, a parking lot in Chicago’s Chinatown neighborhood and AT&T legislation.

Federal prosecutors said they had not determined whether they would seek a retrial on the deadlocked counts. Sentencing won’t happen until a separate forfeiture trial decided by a judge.

The 23-count indictment accused Madigan of using his influence to pass legislation favorable to utility companies that doled out kickbacks, jobs and contracts to his loyalists. An attorney, Madigan was also accused of benefiting from private work that was illegally steered to his law firm.

“Time and again, Madigan abused the tremendous power he wielded,” said Assistant U.S. Attorney Julia Schwartz during closing arguments.

In his testimony, the normally private Madigan told the court: “When people asked me for help, if possible, I tried to help them.”

The trial, which began in October, featured more than 60 witnesses, including a congresswoman, business leaders and former state legislators. Prosecutors presented photographs, transcripts and recordings on alleged schemes. For instance, he allegedly tried to have state-owned land in Chicago’s Chinatown neighborhood transferred to the city for development and expected developers of a hotel project to hire his tax firm.

The backbone of federal prosecutors’ case was hours of videos and phone calls secretly recorded by a onetime Chicago alderman turned FBI informant.

The trial was also a glimpse into how Madigan, who famously didn’t use a cellphone or email, operated behind closed doors. The lines between his roles were often blurred. Madigan, who represented a district near Midway International Airport on Chicago’s southwest side, often had meetings at his downtown law office, whether they were for political or legal work. Elected officials or his political advisers met alongside business contacts. Even in meetings about tax work, he was called “the speaker,” the recordings show.

On the stand, Madigan cast himself as a devoted public servant with a tough upbringing in a working-class Chicago neighborhood. But federal prosecutors on cross-examination, sometimes in tense exchanges, probed about his comments on the secret recordings, including one where he chuckled that some of his loyalists “made out like bandits.”

Madigan, 82, left political office in 2021 while under investigation and was indicted the following year.

During the trial, he watched the proceedings intently, taking notes on a legal pad. Several of his family members attended, including his daughter, Lisa Madigan, who served four terms as Illinois attorney general. She declined to seek reelection in 2018.

Top state leaders said the verdict was a reminder that corruption can’t be tolerated.

“The jury’s verdict closes a long, disturbing chapter in Illinois’ history,” said Illinois Senate President Don Harmon, a Democrat. “It’s a stark reminder that corruption, abuse of power and manipulation of public policy for personal gain can never be tolerated.”

First elected to the Legislature in 1970, Michael Madigan was the Illinois House speaker from 1983 to 2021, except for two years when Republicans were in control. He decided which legislation would be voted on, oversaw political mapmaking and controlled several campaign funds.

Standing trial alongside Madigan was longtime confidant Michael McClain, who prosecutors called Madigan’s “mouthpiece.” Jurors deadlocked on all of the counts McClain faced.

McClain, a onetime state legislator and former lobbyist, was convicted last year with three others in a related case of a bribery conspiracy involving ComEd.

McClain’s attorneys deemed the deadlocked counts a win.

“He was an innocent man when he walked in,” attorney Patrick Cotter told reporters. “He’s walking out an innocent man.”

McClain spoke briefly, describing how he felt: “My head is spinning.”