I was on the premiere of John King USA on CNN last night, talking about the primary problems Michael Bennet now faces as he moves away from his commitment made only a month ago to an up-or-down vote on the public option in the Senate.

Romanoff issued a challenge to Bennet last Friday to honor his commitment, saying “where’s the ‘public option’ champion?” Colorado columnist and radio host David Sirota added fuel to the fire, asserting that “thanks to Romanoff’s demand, [Bennet] will have to put up or shut up. If he refuses to offer the amendment, he shows his past efforts to be kabuki theater — grandstanding for attention while refusing to actually take the steps necessary to do what he publicly claims he wants to do.”