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Presumptive Republican presidential nominee Sen. John McCain, left, smiles after introducing his Vice Presidential running mate, Alaska Gov. Sarah Palin, in Dayton, Ohio., Friday, Aug. 29, 2008. (AP Photo/Stephan Savoia)

Republican Alaska Gov. Sarah Palin and her husband Todd waves as she was introduced as Vie Presidential running mate for Republican Presidential candidate, Sen. John McCain, R-Ariz., left, Friday, Aug. 29, 2008 at Ervin J. Nutter Center in Dayton, Ohio. Center is their daughter Piper. (AP Photo/Kiichiro Sato)

Republican Alaska Gov. Sarah Palin acknowledges supporters as Republican presidential candidate, Sen. John McCain, R-Ariz., introduces her as his Vice Presidential running mate Friday, Aug. 29, 2008 at Ervin J. Nutter Center in Dayton, Ohio. (AP Photo/Kiichiro Sato)

Republican presidential candidate, Sen. John McCain, R-Ariz.,shakes his hand with Republican Alaska Gov. Sarah Palin after Palin spoke during a rally Friday, Aug. 29, 2008 at Ervin J. Nutter Center in Dayton, Ohio. McCain introduce Palin as his Vice Presidential running mate at the event. (AP Photo/Kiichiro Sato)

Republican Alaska Gov. Sarah Palin and her husband Todd waves as she was introduced as Vie Presidential running mate for Republican Presidential candidate, Sen. John McCain, R-Ariz., left, Friday, Aug. 29, 2008 at Ervin J. Nutter Center in Dayton, Ohio. Center is their daughter Piper. (AP Photo/Kiichiro Sato)

Republican presidential candidate, Sen. John McCain, R-Ariz., left hugs Republican Alaska Gov. Sarah Palin as McCain announces her as his Vice Presidential running mate Friday, Aug. 29, 2008 at Ervin J. Nutter Center in Dayton, Ohio. (AP Photo/Kiichiro Sato)

** FILE ** In this Nov. 8, 2006 file photo, then Governor-elect Sarah Palin holds her daughter Piper as she gives a victory speech in Anchorage, Alaska. John McCain tapped little-known Alaska Gov. Sarah Palin to be his vice presidential running mate, two senior campaign officials told The Associated Press on Friday. A formal announcement was expected within a few hours at a campaign rally in swing-state Ohio. (AP Photo/Al Grillo, file)

Governor-elect Sarah Palin outlines her plans at a news conference Wednesday, Nov. 8, 2006, in Anchorage, Alaska. Voters on Tuesday elected the state's youngest and first female governor in Palin, a 42-year-old mother of four whose highest level of office until now was mayor of Wasilla, a small town north of Anchorage. (AP Photo/Anchorage Daily News, Erik Hill)

** FILE ** This photo released by the Alaska governor's office shows Alaska Gov. Sarah Palin visiting soldiers of the Alaska National Guard's 3rd Battalion 297th Infantry Regiment at the Life Support Area in Kuwait, Tuesday, July 24, 2007. In her first year as governor of Alaska, Palin is plunging ahead with the fearlessness of a polar explorer. The Republican has raised taxes on the powerful oil industry and pushed through ethics legislation amid a burgeoning corruption investigation of Alaska lawmakers. (AP Photo/Alaska Governor's Office, Christopher T. Grammer )

*** ADVANCE FOR WEEKEND SEPT. 25,26 - FILE ** Sarah Palin is shown in Anchorage, Alaska, Aug. 8, 2002. Palin never thought of herself as an investigator. Yet there she was, hacking uncomfortably into Randy Ruedrich's computer, looking for evidence that the state Republican Party boss had broken the state ethics law while a member of the Alaska Oil & Gas Conservation Commission. (AP Photo/Al Grillo)

Republican Alaska Gov. Sarah Palin, left, is assisted by Democratic Gov. Jennifer Granholm, right, and her son Jack Granhom, 9, rear, while measuring siding for a Habitat for Humanity home Sunday, July 22, 2007 during the National Governors Association meeting, in Acme, Mich. (AP Photo/John L. Russell)

Republican gubernatorial candidate Sarah Palin talks about her plan for a natural gas pipeline, during a news conference in Anchorage, Alaska, Thursday, Sept. 7, 2006. Palin is up against former Democratic Gov. Tony Knowles in the Nov. 7 general election. (AP Photo/ Al Grillo)

Laurie Serino, left, talks about the high food prices with Alaska Gov. Sarah Palin in Barrow, Alaska on Monday, June 30, 2008. As fuel and food and prices keep climbing, state lawmakers are looking at several assistance options, including Gov. Palin's $1,200 payment to Alaska residents. (AP Photo/Al Grillo)

**FILE** First-term Alaska Gov. Sarah Palin talks in her office in Anchorage, Alaska in a Thursday Aug. 14, 2008 file photo. Palin bas bee named as a possible wild-card candidate for John McCain's vice presidential choice. (AP Photo/Al Grillo, File)

** FILE ** In this Dec. 4, 2006 file photo, Todd Palin, right, holds the Bible for his wife, Sarah Palin, as she is sworn in as Alaska's governor during an inauguration ceremony in Fairbanks, Alaska. (AP Photo/Al Grillo)

** FILE PHOTO ** In this July 29, 2008 file photo, Gov. Sarah Palin speaks to reporters regarding the indictment of U.S. Sen Ted Stevens in her Capitol office in Juneau, Alaska. As the political community turned desperate for any clues about the potential running mate of Republican Presidential candidate, Sen. John McCain, R-Ariz., speculation moved toward several dark horse candidates including Alaska Gov. Sarah Palin, the so-called "hockey mom" credited with reforms of her tiny, out-of-the-way state. (AP Photo/Juneau Empire, Brian Wallace)

**FILE** First term Alaska Gov. Sarah Palin is seen during a press conference in Anchorage in an Aug. 13, 2008 file photo. Palin has bee named as a possible wild-card candidate for John McCain's vice presidential choice. (AP Photo/Anchorage Daily Newsk, Marc Lester, File)

In this Tuesday Nov. 7, 2006 file photo, Governor-elect Sarah Palin holds her daughter, Piper, as she watches the gubernatorial polling results in Anchorage, Alaska. John McCain tapped little-known Alaska Gov. Sarah Palin to be his vice presidential running mate, two senior campaign officials told The Associated Press on Friday. A formal announcement was expected within a few hours at a campaign rally in swing-state Ohio. (AP Photo/Al Grillo, file)

Sarah Palin meets with the media on Sept. 15, 2006 in Juneau, Alaska. Sen. John McCain picked the popular Alaska governor to be his running mate on Friday, Aug. 29, 2009. (AP Photo/ Brian Wallace/Juneua Empire)

In this Dec. 4, 2006 file photo, Gov. Sarah Palin, left, her husband Todd, and daughters Bristol,16, right, and Piper, 5, front stand as the colors are retired at the end of an inauguration ceremony in Fairbanks, Alaska Palin, 42, is the first female and youngest governor of Alaska. John McCain tapped little-known Alaska Gov. Sarah Palin to be his vice presidential running mate, two senior campaign officials told The Associated Press on Friday. A formal announcement was expected within a few hours at a campaign rally in swing-state Ohio. (AP Photo/Al Grillo, file)

Alaska Governor, Sarah Palin, listens to questions during an interview in her office in this Dec. 13, 2007, file photo, in Juneau, Alaska. John McCain tapped little-known Alaska Gov. Sarah Palin to be his vice presidential running mate, two senior campaign officials told The Associated Press on Friday. A formal announcement was expected within a few hours at a campaign rally in swing-state Ohio. (AP Photo/Chris Miller, File)