Freshman U.S. Rep. Michele Bachmann has "not ruled out" running for president, her office said Wednesday.

The Tea Party favorite is the keynote speaker at a GOP event in Iowa, which has an early presidential caucus.

"Nothing's off the table for her," said Andy Parrish, Bachmann's chief of staff. "She's looking forward to traveling to Iowa for the fundraiser, and you know, she's looking forward over the next year to traveling and sharing the story of why we can't re-elect Barack Obama as president."

He added that Bachmann's decision on whether to run won't be affected by the decisions of fellow Minnesota Republican Tim Pawlenty or former Alaska Gov. Sarah Palin.

Bachmann has also been mentioned in recent weeks as a possible U.S. Senate candidate against Democratic Sen. Amy Klobuchar in 2012.