Sarah Palin introduced on her website in March 2010 a United States map with crosshairs on the 20 Democrats and congressional districts she targeted for the November 2010 elections. Palin's opponents have constantly criticized the map noting that they were gun sights and a possible incitement to violence, but a Palin aide said on January 9, 2011 that they were more like a surveyor's symbol. Arizona Democrat Gabrielle Giffords, who was shot and critically injured on January 8, 2011, was one of the 20 Democrats targeted, but she won re-election over a Tea Party-backed candidate. UPI