Levi Johnston

Regrets — Levi Johnston has barely one to mention. And he's "never lied about anything."

In an interview on CBS' The Early Show, slated to air Friday morning at 7/6c, the 20-year-old father of Bristol Palin's son says he would like to take back something he said to his child's grandmother and the person who previously held the office he's seeking — mayor of Wasilla, Alaska.

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"I don't really regret anything," he said. "But the only thing I wish I wouldn't have done is to put out that apology [to Sarah Palin in People Magazine] because it kind of makes me sound like a liar.  And I've never lied about anything.  So that's probably the only thing. The rest of the stuff I can live with."  

Johnston recently announced his campaign for mayor of Wasilla — a position the 2008 Republican vice presidential candidate once held — as reports came out that he'd star in a reality show chronicling his race to office and life raising a son.

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For his part, Johnston hopes to be a better mayor than Palin was.

"I can't guarantee or promise you anything but I'm [going to] try... That's the goal," he said.