House Speaker John Boehner's civil war. The two sides of the fiscal cliff showdown within the Republican Party with Congressmen Steven LaTourette and Mick Mulvaney.

Plus- a culture of violence – with Connecticut Senator Joe Lieberman.

And the NRA breaks its silence with a plan to keep schools safe. We have their point man, Asa Hutchinson.

Then the politics of it all with USA Today Wshington Bureau Chief Susan Page, CNN Senior Political Analyst Ron Brownstein, and Time's Washington Bureau Chief Michael Duffy

Sunday: 9am and Noon ET