Continúa encendida la disputa por la nominación republicana entre los aspirantes.
BOSTON, MA - MARCH 06: Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a Super Tuesday event at the Westin Copley Place March 6, 2012 in Boston, Massachusetts. Super Tuesday could play a vital role in the nomination of the Republican candidate as ten states hold their primaries or caucuses on the same day. (Photo by Win McNamee/Getty Images)