Krauthammer: Trump's Aura of Invincibility Has Been Punctured By Iowa Loss

On The Kelly File, Krauthammer said that the Iowa caucus was a major inflection point on the Republican presidential campaign, as it punctured the aura of invincibility surrounding Donald Trump.

"Had Trump won, it would have reinforced the sense of inevitability, the momentum he had," Krauthammer explained. "This is the first time he's encountered defeat."

Krauthammer said this will have an effect on the voters who have been swept up in Trump's momentum and, more importantly, on the media, who will likely no longer feel the need to cover every single thing Trump says or does.