Another Tuesday of elections, and Bernie Sanders keeps going.
And establishment Democrats don't know how to stop him - because they can't.
While Kentucky isn’t likely to be a swing state in November, problems there for Clinton may foreshadow difficulties in parts of Ohio and Pennsylvania. Any additional wins for Sanders, meanwhile, give him more standing to demand concessions from the party, in order to bring over his supporters even if he cannot secure the nomination.
“The question now for a few weeks has been what does Sanders really want,” said Jennifer Duffy, an analyst at the nonpartisan Cook Political Report. “While Clinton has pretty handily won this nomination she does need his voters. They’d have to give Sanders something that inspires his supporters for lack of a better word.”