The debate, sponsored by CNN and held at the Mesa Arts Center, is the 20th of the GOP primary race and perhaps the final showdown. It came as Santorum has been eroding Romney’s lead in several key states, including Arizona and Michigan.
Feb. 22, 2012Republican presidential candidate Newt Gingrich, right, greets candidate Ron Paul, second from left, alongside Rick Santorum, left, and Mitt Romney before a CNN Republican presidential debate in Mesa, Ariz.Jae C. Hong/AP
Tuesday’s Republican presidential debate in Mesa, Ariz. — the last one before the Michigan and Arizona primaries as well as Super Tuesday — could have major implications for the candidates. Follow it here live.