Despite the fact that countless Washington reporters couldn't help but watch Stephen Colbert's Capitol Hill testimony Friday, not all were enthralled by the Comedy Central star's performance, as they expressed on Twitter.

"REALLY not sure this is funny," wrote ABC News' Rick Klein.

"Colbert is making a mockery of this hearing," said Mother Jones' David Corn.

"Colbert's testimony made a mockery of Congress," said the Washington Post's Aaron Blake.

The Hill's Mike O'Brien said, "This might be the most amazing public stunt before Congress."

National Review's Kathryn Lopez wrote that "a congressional chairman made a joke of her committee today."