13 / 21

Republican presidential candidate, former House Speaker Newt Gingrich smiles as he shakes hands during a Super Tuesday rally on Tuesday, March 6, 2012 in Atlanta. (AP Photo/Evan Vucci)

Republican presidential candidate, former House Speaker Newt Gingrich smiles as he shakes hands during a Super Tuesday rally on Tuesday, March 6, 2012 in Atlanta. (AP Photo/Evan Vucci)

Gingrich drops presidential bid

Newt Gingrich has officially suspended his presidential campaign at a press conference on May 2 in Virginia.