From Daily Kos:
In defending Sen. George Allen against a new television advertisement criticizing his 2003 vote on a Democratic amendment that would have increased National Guard funding for body armor, The Arizona Republic falsely suggested -- and the website FactCheck.org falsely asserted -- that Allen and his Republican colleagues have never voted against supplemental funding for body armor.
Follow the link for Media Matter's full debunking. Republicans truly fear this ad. Santorum is desperately trying to get stations in Pennsylvania to pull it right now.