Blagojevich spoke on "Fox News Sunday" less than a week after he was convicted of lying to federal agents. Jurors, however, deadlocked on 23 other more serious charges, including that he had tried to sell President Barack Obama's old Senate seat.
Federal prosecutors have said they will retry Blagojevich on those charges, but the former governor insisted that he will be vindicated.
"I didn't lie to the FBI. I'm not lying to you, and I didn't lie to the people," Blagojevich told talk show host Chris Wallace.
When Wallace asked Blagojevich if he would run for office again, he answered, "If you're asking me, do I believe that there's a potential political comeback in the future, when I'm vindicated, absolutely I do."
Blagojevich's appearance on the talk show was part of a media blitz that began Friday when he appeared on NBC's "Today" show. The appearances seem intended to appeal, at least in part, to anyone who might end up on a second jury.
It was widely believed that media appearances Blagojevich made before his first trial, including on the "The Celebrity Apprentice" reality show, were attempts to influence potential jurors.
Blagojevich appeared on "Fox News Sunday" by video feed from Chicago. Wallace noted that Blagojevich originally was supposed to be in the studio in Washington with him but had stayed in Chicago to appear at a comics convention where he posed for photographs and signed autographs.
Blagojevich said he needed the $50 he received for each autograph to support his family. But he also said it was "an opportunity to get out in front of the people," presumably including some who could be on another jury.
The former governor repeatedly insisted that he had been involved in nothing more than "political horse trading" and that he didn't try to trade political appointments and other favors for campaign contributions. But when Wallace pressed him, asking whether he had talked about getting money from U.S. Rep. Jesse Jackson Jr.'s supporters before appointing Jackson to the Senate, Blagojevich sidestepped the question.
"My brother very clearly said, money will have nothing to do with this decision," he said.
Blagojevich's older brother, Robert Blagojevich, a Nashville, Tenn., businessman, was charged with him. The 23 counts on which jurors deadlocked included four involving Robert Blagojevich.
As he did before his first trial, Blagojevich said he would testify and that his attorneys would call a number of prominent Democrats, including White House adviser Rahm Emmanuel and Senate Majority Leader Harry Reid.
But when Wallace noted that a similar defense had been promised but not delivered during the first trial, Blagojevich backed off and stopped short of promising to testify.
"I'm going to work with my lawyers and see how things unfold," he said.
A federal judge has scheduled a Thursday hearing to decide the manner and timing of a retrial.