Murray: GOP stance on taxes is 'sticking point'

"At this point today, Democrats have made some really tough decisions and come to some pretty tough choices that we're willing to put on the line, but only if Republicans are willing to cross the line and admit that revenues have to be part of the solution," Murray said on CNN's State of the Union.

Murray said that Republican resistance to raising taxes was the driving force behind the impasse, a theme Democrats have been increasingly hitting as the supercommittee seems more and more unlikely to succeed.

"One of the problems has been a pledge that too many Republicans took to a wealthy Republican lobbyist named Grover Norquist…. as long as we have Republican lawmakers who are more enthralled with a pledge they took to a Republican lobbyist than a pledge they took to help solve the country's problems, this is going to be hard to do," Murray said.

Murray said that the "sticking point" was that Republicans have been unwilling to consider major new taxes on the wealthiest Americans and corporations. "Democrats have said shared sacrifice, the country has said shared sacrifice," Murray said.

For more on Murray on The Hill's On The Money blog, click here.