Former Alaska Gov. Sarah Palin plans to visit the Iowa State Fair on Friday on the eve of the leadoff caucus state's GOP presidential straw poll and in the wake of a Republican debate at Iowa State University.

Palin says in an email to supporters she is resuming her summer bus travels to iconic U.S. destinations with a stop at the fair. The visit to the early voting state comes as most declared Republican presidential candidates will be in Iowa, and as Texas Gov. Rick Perry is expected to enter the race and visit.

Palin's visits to Iowa, including one in June and one planned for Sept. 3, have stoked speculation she is eyeing a 2012 presidential bid, although she has done none of the groundwork there others have.