FANCY FARM — For the first time, Republican U.S. Sen. Mitch McConnell shared the stage with challengers who want his job and stuck around long enough at Saturday’s Fancy Farm picnic to hear one of them speak. Democratic candidate Alison Lundergan Grimes — and later Democrat Ed Marksberry and McConnell’s Republican primary challenger Matt Bevin — slammed McConnell for being in Washington too long and not doing enough to help Kentuckians, fix what ails Washington or both. McConnell, for his part, ignored Bevin completely, both in the senator’s speech and by leaving before Bevin addressed the crowd, which organizers estimated...