Gingrich attacks 'radical' Obama in victory speech

Newt Gingrich used his victory speech Saturday after winning the South Carolina primary to accuse President Barack Obama of presiding over a radical, disastrous first term.

"If Barack Obama can get re-elected after this disaster, just think how radical he would be in a second term," the former House speaker told supporters cheering "Newt can win! Newt can win!" in Columbia, South Carolina. (AFP)