GOP presidential race comes to CPAC

Four years ago this week, Mitt Romney came to the Conservative Political Action Conference after being routed on Super Tuesday. Many conservatives who had settled on him in a last ditch effort to block Sen. John McCain, R-Ariz., from the nomination were disappointed when he used his speech to drop out of the race and call for party unity.

As CPAC kicks off today, Romney finds himself coming off another election night defeat, this one having cracked the veneer of his inevitability. On Tuesday, Romney was embarrassed as Rick Santorum not only blew him away in Missouri and Minnesota, but bested him in Colorado — a state where Romney was expected to win, and where he had won 60 percent of the vote four years earlier.