What's the difference between NBC and CBS? Rachel Sklar knows:

"Yesterday, on the day when South Dakota Senator Tim Johnson fell ill with an apparent stroke and seemed in danger of being replaced by a Republican handpicked by Republican governor Mike Rounds, thus changing the balance of power in the Senate from Democrat to Republican, the CBS news led with... holiday shopping. (12 shopping days left 'til Christmas!). NBC's [Brian] Williams, meanwhle, led with the Johnson story, pulling in updates from correspondent Chip Reid and sitting with NBC Washington Bureau chief Tim Russert to discuss the move and its ramification." More...