At this point, the best thing Bernie Sanders's supporters can probably do for his reputation is to vote against him in the remaining primaries and caucuses.
Hillary Clinton long ago wrapped up the nomination. Wednesday's results - her narrow victory in Kentucky and his win by about 10 percentage points in Oregon - doesn't change anything: It's over.
If you include superdelegates, Clinton is only about 100 delegates away from clinching, and with Democratic proportional allocation she is basically guaranteed to get there.
Yet the closer Clinton gets to her official victory, the more Sanders and his campaign act as if the nomination was unfairly stolen from him - that somehow the doors of the party have been unfairly closed against his followers. This culminated in an ugly scene in Nevada last weekend, with Sanders supporters threatening Democratic Party officials there.
The result? Liberals have turned on Sanders, urging him to get out of the race now or, at least, to change his tone. Talking Points Memo's Josh Marshall says Sanders is "lying to [his] supporters". At Mother Jones, Kevin Drum calls him "very, very bitter". The New York Times's Paul Krugman says Sanders "has a problem ... in facing reality" and calls his campaign a "terrible mess".