Polls show former Massachusetts Gov. Mitt Romney locked in a close race with Texas Rep. Ron Paul, with former Pennsylvania Sen. Rick Santorum rising swiftly to challenge them.
The Tuesday caucus meetings in Iowa could further define the seven-candidate field of Republicans seeking the party’s nomination. They are the first in a grueling series of state-by-state primary elections and caucuses that stretch to the end of June.
Only three or four candidates typically make it out of Iowa with enough momentum and money to continue in the race.