
Associated Press Former Alaska Gov. Sarah Palin holds son Trig as she addresses a Tea Party Express rally at the Arizona Capitol in Phoenix on Friday. The sign is a reference to the Boston Tea Party.

Former Alaska Gov. Sarah Palin speaks to the gathering for the launch of the two-week Tea Party Express bus tour in Reno on Monday.

Former Alaska Gov. Sarah Palin speaks to the gathering for the launch of the two-week Tea Party Express bus tour in Reno on Monday.

ASSOCIATED PRESS Sarah Palin launches a Tea Party Express tour in Reno, Nev., on Saturday.

No conservative comic counterpart has been found yet to Tina Fey, whose sendup of vice-presidential candidate Sarah Palin in 2008 on "Saturday Night Live" was wildly popular. (Associated Press)

**FILE** In this photo from Sept. 15, 2010, former Alaska Gov. Sarah Palin appears as the featured speaker at the Oklahoma Council of Public Affairs' annual Liberty Gala at the Convention Center in Tulsa, Okla. (Associated Press)

Associated Press photographsI IN TANDEM: Former Alaska Gov. Sarah Palin and RNC chief Michael S. Steele are collaborating on GOP fundraising.

Associated Press photographs The Republican National Committee is helping former Alaska Gov. Sarah Palin pay off legal expenses dating back to her 2008 vice-presidential campaign.

In this Oct. 25, 2008, file photo, then-Republican vice presidential candidate, Alaska Gov. Sarah Palin, speaks in Des Moines, Iowa. The 2008 GOP vice presidential nominee will be the big draw at Friday's Reagan Dinner in Des Moines, the Iowa Republican Party's biggest fundraiser. The question that will be on everyone's mind is whether she'll run for president in 2012. (AP Photo/Charlie Neibergall, File)