Texas State Rep. Leo Berman has introduced a bill into the state legislature requiring documented proof that a Presidential candidate is a native-born citizen. Berman, like his fellow birthers, is unconvinced that Obama was born in Hawaii despite overwhelming evidence from Republican elected officials and appointees in Hawaii that Obama was born there.

The video is a bit long, about 14 minutes, but CNN’s Anderson Cooper devastates Berman with fact after fact and solid evidence pointing out Berman’s fallacies, from Obama’s travel to Pakistan to the Hawaiian birth certificate.

If you like seeing a birther taken down, or even if you are undecided on this issue, this clip is well worth a watch.