A March 15 Politico article detailed a critique by Glenn Beck's The Blaze of James O'Keefe's NPR video. The article also detailed Beck's divide with O'Keefe and Andrew Breitbart, and highlighted conservative criticisms of Beck. From the article:

“Like everyone else, I was scratching my head,” said Eric Boehlert, a senior fellow at liberal watchdog Media Matters, which has made a cottage industry of critiquing Beck. “We've been really critical of the site, and just because they turned on O'Keefe doesn't suddenly make them the arbiter of truth. But I haven't seen anyone who has looked at it and suggested that they don't have the goods.”

[...]

Other conservatives have increasingly voiced skepticism of Beck's' motives and impact on the right, with some suggesting that he's more motivated by money and market share and others worrying he's tainting the conservative movement.

The Washington Post's conservative blogger Jennifer Rubin suggested last month that the right should “call him out and explain that he doesn't represent the views of mainstream conservatives.”

Rubin said The Blaze's critique of the NPR sting left her pondering “whether (Beck) is trying to do something on the up and up and advance good journalism or whether he is doing it to create a controversy and stick his finger in the eye of the right in some ways in retaliation for all of the negativity that's been expressed of late.”

She added “It's hard to divine his motivations and in some sense I don't try to. I try to evaluate what he's said which, of late, has been fairly and increasingly outrageous. But I don't have any psychological insight into why he does what he does.”