It's called the Democratic party. "Democrat party" is a slur used by Republicans, and its usage suggests someone who either views the party in a derogatory way

It's called the Democratic party. "Democrat party" is a slur used by Republicans, and its usage suggests someone who either views the party in a derogatory way or who is underexposed to non-right-wing news sources. See http://en.wikipedia.org/wiki/Democrat_Party_%28epithet%29 http://en.wikipedia.org/wiki/Democrat_Party_%28epithet%29