President Obama lost more than 40 percent of the vote in Tuesday’s Kentucky Democratic primary to the “uncommitted” option — the latest example of the incumbent president failing to win votes in an uncompetitive primary. With 99 percent of precincts reporting in the Bluegrass State, Obama led “uncommitted” just 58 percent to 42 percent. Obama trailed in more than 60 Kentucky counties. It was just the latest episode of the president taking less than 60 percent of the vote in a primary this year. He ceded 41 percent of the vote in West Virginia to an incarcerated man in Texas...