Polls show that Republican voters aren't exactly swooning over Rick Santorum's White House run, but one woman was overcome during his big announcement yesterday. The former senator interrupted his speech after a woman fainted, apparently from the heat, Vanity Fair reports. Santorum walked offstage to help the woman and then asked the crowd to "say a little prayer for that young lady," bowing his head for several seconds before resuming his address. (More Election 2012 stories.)