This passage from the New York Times report on yesterday’s Crist-Rubio debate is a case study in why I avoid debate commentary:

[Crist] looked most frustrated, frowning noticeably and complaining, when the Fox News moderator, Chris Wallace, cut him off from talking about his mixed record on taxes. Mr. Rubio, the son of Cuban immigrants, looked most flummoxed on the issue of immigration, when Mr. Wallace said he had taken a tougher line as a Senate candidate than as speaker of the Florida House.

Nothing says hard news like interpretations of facial expressions!