I don’t think anyone considers Frum or Chrissy Buckley to be a part of the conservative movement. I find it hard to consider someone a part of the conservative movement who is continually attacking that movement.
Frum used to do good work, until he apparently became unhinged over Obama’s election (he had been getting weaker for some time before that). Chris Buckley had been tolerated for his dad’s sake, and his abilities as a writer. His support for Obama ended that.