SNEAK PEEK: Thompson Hits Iowa

After weeks of dipping his toe into the presidential waters, Fred Thompson may be putting one whole foot in Friday when he makes his first visit to Iowa. And what better place to start than the State Fair in Des Moines.

With his family by his side, the former senator turned TV star will make the rounds, check out pork on a stick, fried Twinkies and appropriately fawn over the life-size cow made of butter.

ABC News' Christine Byun reports that Thompson will start his day with a meeting with about 20 "conservative activists" in Des Moines.

Thompson will meet with Iowans at 1:45 pm ET followed by a session on the Register's "Soapbox" at 2:15 pm ET, a 3:15 pm ET tour of the fairground where "cameras are encouraged to get B-Roll" before he rounds out the day with even more glad-handing.

The Hawkeye state visit makes a lot of sense for the "Southern-fried Reagan" because he's hoping to prove to Republicans he's the authentic conservative in the race.

Thompson, who certainly doesn't yet have the advantage of a strong Iowa operation like Mitt Romney, may not be in that bad of a position on the eve of his inaugural trip. He's not even entered the race and he already places third among likely GOP caucus-goers according to a recent ABC News/Washington Post poll. Romney leads the pack with 26 percent, Giuliani finishes a point better than Thompson with 14 percent.

Could this be the turning point in the story of the '08 Iowa Republican caucus, a story which has been dominated by Romney?

Over in the Land of Lincoln, it looks like the end of the political road for former House Speaker Dennis Hastert who will announce Friday that he is retiring from Congress. Hastert, the former high school teacher and wrestling coach who was first elected in 1986, will make remarks at the Kendall County Courthouse in his hometown of Yorkville at 11:00 am ET

It's unclear whether Hastert will finish out his term or retire sometime before the end of the year. Hastert served as Speaker for eight years, the longest a Republican has ever served as Speaker of the House.

On the presidential trail. . .

Mitt Romney raises coin in New York's Hamptons.

Rudy Giuliani meets, greets and eats in the Granite state with a 9:30 am ET town hall with local residents in Merrimack, a 12:00 pm ET Bar-B-Que in Amherst, followed by meet and greets in Manchester, New Boston, Peterborough and Milford.

John McCain spends his day in New York with no public schedule but will do a series of radio interviews with ABC affiliates to promote his latest book, "Hard Call: Great Decisions and the Extraordinary People Who Made Them."

Mike Huckabee is in New Hampshire for a 6:00 pm ET spaghetti dinner hosted by the Manchester Republican Committee.

As runner-up Huckabee tries to topple Iowa Republican Party Straw Poll winner Mitt Romney in the lead-up to the Iowa caucuses, the former Arkansas governor is selling his "sensitivity" to people's everyday economic concerns more than any specific policy, ABC News' Teddy Davis and Leigh Hartman report.

As for the Dems. . .

Hillary Clinton is in Chappaqua, N.Y. with no public events.

Her husband, Bill, the former prez, attends the 10th Anniversary Lake Tahoe Forum at Incline Village's Sierra Nevada College. The forum is commemorating the 10 years of annual political summits for Lake Tahoe. President Clinton and Vice President Al Gore established the Lake Tahoe Federal Advisory Committee after the initial Lake Tahoe Presidential Forum in 1997.

Bill Clinton will also speak at a campaign rally 8 pm ET Friday night at the Reno-Sparks Convention Center as part of the "Ready to Lead in the West" tour. The rally starts at 5 pm. This is President Clinton's first stop in Nevada on the stump for his wife.

Barack Obama serves as the keynote speaker at the 4:45 pm ET opening ceremony of VeraSun Energy, a 110 million-gallon-per year ethanol production facility in Charles City, Iowa. After that, Obama heads to Clear Lake for some "chicken wings and fun" at the 4th annual "Wing Ding."

John and Elizabeth Edwards "fight for one America" in Centerville, Bloomfield, Keokuk, Burlington, Wapello and Iowa City. Elizabeth will read from her memoir "Saving Graces: Finding Solace and Strength from Friends and Strangers" at an event at the University of Iowa. Bill Richardson auditions for the job of president, taking his "Presidential Job Interview" to Ottumwa, Oskaloosa, Knoxville and Des Moines.

Chris Dodd meets with Iowa locals in Newton, Muscatine and Eldridge.

Dennis Kucinich speaks at the Veterans for Peace Annual Convention in St. Louis, MO at 7:30 pm ET.

President and Mrs. Bush attend a 1:20 pm ET RNC reception in Crawford, TX (and read all the stories in Friday's papers about their daughter Jenna's engagement. Is a White House wedding already in the works?) h

POLITICAL STORIES ON ABCNEWS.COM:

ABC News' Jake Tapper "He Said, He Said: Thompson on Abortion" href="http://abcnews.go.com/Politics/story?id=3489306&page=1.html"target"external">LINK

ABC News' Rick Klein "Edwards Asks Obama to Team Up Against Lobbyist Donations LINK

ABC News' Jake Tapper "When Money Gets in the Way of the Message LINK

ABC News' Jason Ryan, Jennifer Duck and Theresa Cook "Former Ney Staffer Sentenced" LINK

ABC News' Jon Garcia "Jenna Bush Engaged to be Married" LINK

POLITICAL VIDEO ON ABCNEWS.COM:

Giuliani: 'Leave My Family Alone' The former mayor tells a New Hampshire questioner to "leave my family alone." LINK

Clinton Works the Crowd Sen. Hillary Clinton campaigns at the Iowa State Fair LINK

What Does the Press Corps Do in Crawford? Reporters brave the August heat while the president is on vacation. LINK