The only reason, the only reason, the only reason anyone pays any attention to David Frum is that he is the mainstream media’s “useful conservative,” someone who screams about the crazy Republican Party and Tea Party movement.

He is worse than a carnival barker, because a carnival barker does not gain attention by badmouthing others at the carnival.  There is nothing, nothing, nothing David Frum says of a positive nature which gets him any attention.

Now Frum has announced that unless Mitt Romney or Jon Huntsman is the nominee, he may leave the Republican Party:

Any other nominee would gravely test my commitment to the political party I’ve supported since I entered the United States as a college student in the fall of 1978.

Jump, David, Jump.

And don’t let the border hit you on the way out:

Added:  Frum’s just setting himself up for Part 2 of his gig if Romney is not the nominee (Huntsman is irrelevant). He’ll pen aother lengthy piece for New York Magazine about how he didn’t leave the Republican Party, the Republican Party left him.  He’ll work hard on CNN to tear down the Republican nominee and get Barack Obama elected, to prove how principled he is.