Yes, it’s the sound of the Democrats growing a backbone:

A week after the GOP-led Senate rejected an increase to the minimum wage, Senate Democrats on Tuesday vowed to block pay raises for members of Congress until the minimum wage is increased.

"We're going to do anything it takes to stop the congressional pay raise this year, and we're not going to settle for this year alone," Democratic Leader Harry Reid of Nevada said at a Capitol news conference.

Hmm, did somebody figure out that this may be a campaign winner?