Mitt Romney has swept Tuesday night's primaries.
The republican presidential hopeful won Delaware, Pennsylvania, New York, Connecticut and Rhode Island.
Romney's victory speech was titled "A Better America Begins Tonight". In it, he focused his criticism on President Obama.
Newt Gingrich was counting on a win in Delaware to keep his campaign alive, but he says he'll be campaigning in North Carolina this week.
Ron Raul is the only active candidate who hasn't won a single state.