If you look it up, the Democrat party changed it’s name to the Democratic party at some point.
Then it was "Progressive Democrat" party that a bunch went to, and the website displayed those legislator's names. Now, not so much. But Medea Benjamin is still on their board! (Besides, "progressive" just sounds so happening now!) But maybe it isn't PC for them any more.
No matter what they call themselves, as far as I'm concerned they're still not democratic and continue to be liberal jackasses.