

Delaware Republican Senate candidate Christine O'Donnell is interviewed at an election night party on Sept. 14. Former vice presidential candidate and former Alaska Gov. Sarah Palin speaks at a 'tea party' rally in Boston in April. Rob Carr/AP
Former Alaska Gov. Sarah Palin speaks during the Republican Party of Iowa's Ronald Reagan Dinner on Sept. 17. Charlie Neibergall/AP
Republican Senate candidate Christine O'Donnell addresses supporters after winning the Republican nomination for Senate in Delaware on Sept. 14. Rob Carr/AP
Alaska Gov. Sarah Palin chats with those gathered at the start of the Tesoro Iron Dog on the ice at Big Lake in February 2009. Bill Roth/Anchorage Daily News/Newscom/FILE
Delaware Republican Senate candidate Christine O'Donnell arrives at a Sussex County Republican Committee picnic at Dave Wilson's Auction on Sept. 19 in Lincoln, Del. Jessica Kourkounis/AP
Former Alaska Gov. Sarah Palin waves as she enters the Republican Party of Iowa's Ronald Reagan Dinner on Sept. 17 in Des Moines, Iowa. Charlie Neibergall/AP
Actress Tina Fey (l.) plays Sarah Palin on Saturday Night Live in September 2008. NBCU Photo Bank/Dana Edelson/AP/FILE
Republican Senate candidate Christine O'Donnell waits to be interviewed at her election night party on Sept. 14. Rob Carr/AP
Former vice presidential candidate and Alaska Gov. Sarah Palin makes her first appearance as a FOX News Channel contributor on "The O'Reilly Factor," on Jan. 12. The Fox News Channel's O'Reilly Factor/AP/FILE
Delaware Republican Senate candidate Christine O'Donnell speaks at a Sussex County Republican Committee picnic at Dave Wilson's Auction on Sept. 19, in Lincoln, Del. Jessica Kourkounis/AP
Delaware Republican Senate candidate Christine O'Donnell gestures while delivering remarks at Values Voter Summit in Washington on Sept. 17. Manuel Balce Ceneta/AP
Former vice presidential candidate and Alaska Gov. Sarah Palin acknowledges members of the Pennsylvania Family Institute as she walks on stage to give a speech in Hershey, Pa., on Aug. 27. Bradley C. Bower/AP
Delaware Republican Senate candidate Christine O'Donnell laughs while talking with family members in between television interviews on Sept. 15 in Dover, Del. Rob Carr/AP
Former Alaska Gov. Sarah Palin speaks at the Oklahoma Council of Public Affair’s annual Liberty Gala at the Convention Center in Tulsa, Okla., on Sept. 15. Brandi Simons/AP
Republican Senate candidate Christine O'Donnell (l.) answers a question during a candidate forum on Sept. 16 in Wilmington, Del. Rob Carr/AP
Former Gov. Sarah Palin waves as she walks off the stage after speaking at the Glenn Beck "Restoring Honor" rally in front of the Lincoln Memorial in Washington on Aug. 28. Alex Brandon/AP
Senate candidate Christine O'Donnell talks to voters in Wilmington, Del., on Sept. 14. Robert Craig/The News Journal/AP
Sarah Palin flashes a thumbs up towards her husband, Todd, as she begins to address a crowd during a stop of the Tea Party Express on Boston Common in Boston in April. Charles Krupa/AP