But the senator is also known for his orneriness. On days when he was spoiling for a fight in the Senate, Stevens often wore a tie bearing the angry comic book hero the Incredible Hulk. He even referred to himself as "a mean, miserable SOB."
Next week, he will face off with the Democratic challenger to his seat in the U.S. Senate, Anchorage mayor Mark Begich. Recent polls show a tight race, and Republican officials have admitted that the outcome of Stevens' trial will weigh heavily on the minds of Alaska voters and fellow senators who could vote to oust Stevens.
"If the trial comes to a conclusion and, as he believes, that he is found innocent, I think that he will win that election up there," National Republican Senatorial Committee chairman Sen. John Ensign, R-Nev. said last Tuesday. "If it goes the other way, obviously, it really won't matter what happens in the election."
Stevens is the latest Alaska Republican to fall amid the wide-ranging public corruption probe in that state. The investigation began in 2004, expanded to include Allen's company two years later and ensnared the senator after investigators became suspicious of Stevens' relationship with Allen.
Last year, federal agents searched Stevens' Girdwood home -- which he calls the "chalet" -- and Allen, the millionaire oilman, pleaded guilty to his own separate corruption charges. Seven other Alaskans, including the ex-speaker of the statehouse, a former vice president of Veco and a lobbyist, have been convicted as part of the probe.
Allen is the man on the other end of Stevens wiretaps, collected by the FBI. Prosecutors believed the recordings, which they played for the jury, proved that Stevens was aware he might be in legal trouble.
"They're not going to shoot us, it's not Iraq," Stevens can be heard saying on one tape. "We might have to pay a fine, might have to serve a little time in jail."
Stevens' attorneys are expected to appeal the conviction, but the senator's words could come back to haunt him soon enough.
ABC News' Imtiyaz Delawala and Luis Martinez contributed to this report.