DAYTON, OHIO - AUGUST 29:  Presumptive Republican presidential nominee John McCain and Alaska Gov. Sarah Palin at a rally by presumptive Republican presidential nominee John McCain's at the Ervin J. Nutter Center August, 29, 2008, in Dayton, Ohio. McCain announced the governor as his vice presidential running mate at the rally. Getty Images logo Getty Images 15 months ago

DAYTON, OHIO - AUGUST 29: Presumptive Republican presidential nominee John McCain and Alaska Gov. Sarah Palin at a rally by presumptive Republican presidential nominee John McCain's at the Ervin J. Nutter Center August, 29, 2008, in Dayton, Ohio. McCain announced the governor as his vice presidential running mate at the rally.