Texas Gov. Rick Perry is expected to announce his presidential intentions in a speech in South Carolina on Saturday. And when he does so, former Alaska Gov. Sarah Palin will likely be nibbling on fried Twinkies, pressing the flesh and getting the press at the Iowa State Fair.

“We are very happy to jump back on the bus for another leg of our 'One Nation Tour'!," she wrote to supporters of her political action committee SarahPAC. "We accept with gratefulness an invitation to meet folks at the Iowa State Fair in Des Moines this week.”

Though her presidential aspirations are still a mystery, at least one trip to the Iowa State Fair is a prerequisite for any presidential campaign.

Regardless of whether or not she’s running -- or setting herself up to be some sort of kingmaker -- her timing is perfect. Not only will her presence in Iowa take at least a hunk of buzz away from Perry’s announcement, Saturday is the day of the Republican straw poll, which means that the candidates will also be making the obligatory fair visit to drum up support for that poll.

If she's there, however, it's like to be Palin-day in Iowa.

Whatever weaknesses Palin may have as a politician, timing isn’t one of them. Palin’s "One Nation" tour was launched on Memorial Day weekend, where she visited historical sites in the east. She finished her tour in New Hampshire -- to great fanfare -- the day that Mitt Romney announced his run. She visited Iowa to attend the premier of the “The Undefeated” in June, a day after  Michele Bachmann made her candidacy official in a speech in the same state, taking much of the air out of that announcement.

Below is the email in full she sent to her supporters. And also check out her new "One Nation" campaign video here.

Dear SarahPAC Supporter,         

We are very happy to jump back on the bus for another leg of our "One Nation Tour"! We accept with gratefulness an invitation to meet folks at the Iowa State Fair in Des Moines this week.

The heartland is perfect territory for more of the One Nation Tour as we put forth efforts to revitalize the fundamental restoration of America by highlighting our nation's heart, history, and founding principles.  

In a grossly weakened economy - especially when recovery is thwarted by today's Obamanomics - prudent Americans make sensible decisions to live within their means. This includes seeking affordable participation in more community events, local patriotic parades, and traditional all-American venues like state fairs. State fairs hold a special place in our nation's history and heritage, so my family is honored to highlight one of them on one stop along the One Nation Tour route - America's historic Iowa State Fair! (I'm also excited to try some of that famous fried butter-on-a-stick, fried cheesecake-on-a-stick, fried twinkies, etc. I'll enjoy them in honor of those who'd rather make us just "eat our peas"!) 

Unlike next week's Obama Bus Tour, taxpayers aren't funding our tour, which is why we so appreciate your support in allowing us to be out there on the open road to visit with you to highlight small towns, big-hearted people, and the important role they play in our most exceptional nation. You can participate with support for the "One Nation Tour" through SarahPAC.com and following virtually by bookmarking the SarahPAC website. We'll have updates from the road as our Constitution-draped bus travels to shine a spotlight on more of our nation's fine history. Watch this video and let the American road inspire you!  Thank you for your continued support of SarahPAC. Let's stay committed to the worthy cause - restoring all that is good and strong and free in America!   

Amanda Coyne at amanda(at)alaskadispatch.com