For many following the Republican presidential contest, the big question is who's winning.
That's not easily answered if you go only by who has won each state's primary or caucus. But if you measure who's won the most pledged convention delegates, former Massachusetts Gov. Mitt Romney is clearly in the lead.
So much so, in fact, that Romney's campaign insists there's no way his rivals can catch up or keep him from getting the 1,144 delegates needed for securing the nomination in Tampa this summer during the Republican National Convention.
