Gee, apparently Scott Brown being the 41st vote emboldens Dem senators to oppose Obamaniacs.
Exactly. Even if they're in the minority, it's still up to Republicans to fight. When they fight, a few Dems always go wobbly and those vote swings make all the difference. If they just rolled over, then sympathetic Dems would figure "What's the point in opposing this nutty bill? I'll just ride the wave, keep my head in the trough, and vote with the party."