How to Handle Political Telemarketing?

TheOtherChimeraTwin writes "Slashdot has touched on telemarketing in the past. The No Call lists work pretty well for me except for a flood of political calls. They guys use automated dialers with recorded messages and use bogus caller id information, calling back multiple times. Political surveys are done by real people, but they hang up on me if I stray from answering their questions. Does anyone have a solution better than just hanging up on these slime? I'd just vote for their opponent, but sometimes I'm getting called by both sides. The distraction of these calls is annoying and the problem is only going to get worse."