It’s been a week since Sen. Thad Cochran (R-Miss.) won the Mississippi Republican primary, but not if you ask Chris McDaniel. The failed Senate challenger hasn’t conceded to the six-term incumbent, and shows no signs of doing so anytime soon. Instead, the state senator is looking into legal routes to challenge the 6,693-vote margin he says was orchestrated through, at best, illegitimate voter targeting, and at worst through illegal vote-buying. Mississippi has no statute to force a recount, so McDaniel’s only recourse to challenge the outcome of an election that conservatives have widely panned is through legal means. He and...