Romney did such an effective job building the best Republican organization in the Hawkeye State that two other GOP candidates, former New York Mayor Rudy Giuliani and Arizona Sen. John McCain, blinked at the thought of challenging him at the Iowa straw poll, leaving that event to him and to second-tier Republican hopefuls.
Polling in Iowa and New Hampshire currently shows Romney leading in both states, with Thompson trailing badly.
In Iowa, Romney generally draws around 30 percent in polls of likely caucus attendees, while Giuliani and Thompson fight it out for second, drawing in the low to mid-teens. In New Hampshire, Romney gets the support of about 30 percent of primary voters, while Giuliani is about 10 points back and McCain and Thompson battle it out for third, often in the low teens.
http://www.realclearpolitics.com/articles/2007/09/how_thompson_hurt_his_own_pros.html
What a novel concept: Fred has waited too long.
But maybe more than anything else, he gave an opening first to Romney and more recently to Huckabee that neither would have had. So instead of squeezing them out of the race in the summer, Fred Thompson finds himself squeezed in the fall.
Is Thompson a problem for Romney? Sure, but not as much of a problem as Romney now is for Thompson."
Good analysis.