Sarah Palin's bus waits in front of Barnes and Nobles during the first stop of her book tour in Grand Rapids, Mich., on Wednesday, Nov. 18, 2009.
A fan of Sarah Palin holds onto her book while waiting to get it signed by during the first stop of Palins book tour in Grand Rapids, Mich., on Wednesday, Nov. 18, 2009.
Fans wait to meet Sarah Palin during an autograph session at Barnes and Nobles during the first stop of her book tour in Grand Rapids, Mich., on Wednesday, Nov. 18, 2009.
Todd Shaffer, 38, of East Lansing, Mich., in foreground, waits in line with hundreds of people at a Barnes and Noble bookstore on Nov. 18, 2009, for a wristband that would give them a chance to have Sarah Palin sign their copies of her new book, "Going Rogue," at a book signing that evening in Grand Rapids, Mich.
Sarah Palin signs her autograph at Barnes and Nobles during the first stop of her book tour in Grand Rapids, Mich. on Wednesday, Nov. 18, 2009.
Former Alaska Gov. Sarah Palin waves to the crowd during a book signing appearance for her autobiography, "Going Rogue," at Joseph-Beth Booksellers in in Norwood, Ohio, on Nov. 20, 2009.
Cindy Bueler, left, stands with Paul Johnson, who is dressed in a historic military costume, as they wait to get their books signed by former Alaska Gov. Sarah Palin at Joseph-Beth Booksellers in in Norwood, Ohio, Nov. 20, 2009.
Crowds waiting in line to have Sarah Palin sign her book "Going Rogue", hold up copies of the book for television crews at a book signing at the Sam's Club warehouse store in Washington, Pa., Saturday, Nov. 21, 2009.
A woman in the crowd wears a Palin 2012 shirt while waiting in line to have Sarah Palin sign her book "Going Rogue" at a book signing at the Sam's Club warehouse store in Washington, Pa., Saturday, Nov. 21, 2009.
Crowds wait in line to have Sarah Palin sign her book "Going Rogue" at a book signing at the Sam's Club warehouse store in Washington, Pa., Saturday, Nov. 21, 2009.
Sarah Palin, right, signs her book "Going Rogue" at a book signing at the Sam's Club warehouse store in Washington, Pa., Saturday, Nov. 21, 2009.
Sarah Palin signs her book "Going Rogue" at a book signing at the Sam's Club warehouse store in Washington, Pa., Saturday, Nov. 21, 2009.
Protesters line up for the Sarah Palin book-signing event in Henrietta, N.Y., Saturday, Nov. 21, 2009.
Hundreds of customers line up for the Sarah Palin book-signing event in Henrietta, N.Y., Saturday, Nov. 21, 2009.
Sarah Palin interacts with a customer during a book-signing event in Henrietta, N.Y., Saturday, Nov. 21, 2009. Henrietta is a suburb of Rochester, N.Y.
Sarah Palin buttons are seen for sale outside a Barnes & Noble book store where Palin was autographing books during a book tour stop in Roanoke, Va., Sunday, Nov. 22, 2009.
Sarah Palin talks to a young fan while at a book tour stop in Roanoke, Va., Sunday, Nov. 22, 2009.
Barbara Epperly of Radford, Va, celebrates after Sarah Palin signed her books at a book tour stop at Barnes & Noble Book Store in Roanoke, Va., Sunday, Nov. 22, 2009.