[apillar]

Obama can sign it until he's blue in the face but it will remain nothing more than a piece of paper unless he can get 66 senators to pass it. The reason it was dropped back in August was that 46 senators had already signed a letter to the NRA saying they would vote against it if it ever made it that far. (including a couple democrats).

[DuncanWaring]

Nope, only two-thirds of “those present” are necessary for ratification.

All Dingy Harry has to do is call a secret session of 51 (quorum) of his Rat Buddies and have 34 of them vote for it.