Check this diary from SusanG at Kos about a very effective way to push past the typical lame righty congresscritter defense to being called on their evil votes for evil legislation. This example centers on Medicare D.
"Example, using Medicare:
Republican Incumbent: While my opponent would like to paint the Medicare bill as a solely Republican program, the truth is many Democrats voted for it too.
Democratic Challenger: And isn't that what's terrific about our system? Right now, in every Congressional district across this great nation, incumbents - Republican and Democratic alike - are answering to their constituents for their records. Local voters are doing their job of making sure those who represent them are working in their best interest. In that great American tradition, we here in Podunk County ask you, Representative Scalawag, why you voted for Bush's confusing plan - the largest increase in an entitlement plan in 40 years - that we now know is due to go bankrupt in 2012. And that has . Why are you enabling this president to push a dysfunctional plan on America's senior citizens?
Republican Incumbent: .
Democratic Challenger: Ah, yes. Bush's Medicare D fiasco. The president couldn't have done it without you.Fun!