2012 Republican Race: The Field May Not Be Closed By Rhodes Cook
Conventional wisdom is that the Republican presidential field is set, and that it is much too late for a new candidate to enter the race.
In years past, that would be absolutely correct. Over the last few decades, dozens of primaries and caucuses have been shoe-horned into the opening weeks of the election year, with the tendency on the Republican side for the front-running candidate to score a quick knockout.