Democrats are struggling to answer a simple question—“What’s a Democrat?”—and must do a better job of explaining their core values to voters, according to a task force formed after the party’s dismal showing in the 2014 election. “I am here to tell you the Democratic Party has lost its way,” said a panel member, Kentucky Gov. Steve Beshear. The problems are not with the “party’s core beliefs,” he said, but relate to “our inability to convey our principles to the American people in a precise, concise and passionate way.” According to interim findings in the Democratic National Committee’s report released...