When Obama was twisting arms for votes on Obamacare he told Dems that they must vote for the bill even if it means that they might be endangering their seat next time they are up for re-election. Voters remember such debacles!
Well it is an effective strategy to try to make you forget the LAST debacle by presenting new and ever interesting NEW ONES.
If there is a SINGLE congress-person standing who voted for CAP and TRADE, Stimulus 2, or Obama-Care... you're probably looking at CALIFORNIA'S voting results.