Zach Galifianakis smokes weed on 'Bill Maher': Was that wise?

Zach Galifianakis joins everyone -- even R2-D2 and Kareem Abdul-Jabbar -- in making a public appearance to encourage voters to cast their ballots on the Nov. 2 midterm elections. But will his particular stunt help or hinder his cause?

On this past week's "Real Time With Bill Maher," "The Hangover" star discusses Proposition 19, in which Californians can decide whether or not to legalize marijuana.

"It's a tricky thing politically to jump on that bandwagon," says Galifianakis before pulling lighting up a joint and taking a few puffs. "Because I think that maybe people still see it as taboo."