The large Republican presidential field, along with the dramatic surges and collapses of several of its candidates, may ultimately be much ado about nothing. That, at least, is the conclusion of the Republican strategists surveyed in this week's National Journal Political Insiders Poll, who almost unanimously identified Mitt Romney as the most likely candidate to win the nomination. In the five times the GOP Insiders have been asked that question in 2011, Romney has never surrendered the top spot.