The world of American politics has (in most areas) gotten far gay-friendlier since Harvey Milk first entered the scene so long ago. Today, we have an openly gay senator, mayors, congressmen, and more. Still, LGBT politicians can face opposition while in office in the form of discrimination from their peers, or, depending on where they are running for office, LGBT candidates might be not voted for due to their sexual orientation, regardless of wherever they may stand on the issues.
