Mississippi is new headache for GOP in the South

Sen. Thad Cochran’s (R-Miss.) impending retirement has opened a new path for Tea Party firebrand Chris McDaniel to reach the Senate — a prospect that Majority Leader Mitch McConnell (R-Ky.) desperately wants to avoid. McConnell and other Republican leaders are worried about a reprise of last year’s electoral debacle in Alabama, when another conservative insurgent,…