I didn't click over to NR to see who wrote that, but it's a lot heavier on ideology than reality. Pelosi and Reid are certainly willing to throw any other Dems under the bus to support Obama and Die Partei, in her case because her district is so moonbat there is no chance of her losing, in his case because the main shot he has at winning is for Obama to throw everything into supporting him in return. Despite their leadership roles, they each totally control exactly one vote each, and for almost all of the other 470-or-so Reps and Senators up for re-election, literally everything comes down to what they think is going to sell in their own districts and states. Very few of THEM are willing to be thrown under the bus for Nan or Harry, and there aren't enough plums to pass out to make deals on that kind of thing.