Last week, House Speaker John Boehner decided to retire rather than chance being ousted by his own colleagues. Despite this lucky break, the congressional GOP has little chance of winning back disenchanted Republican voters unless it also shows Senate Majority Leader Mitch McConnell the door. Continued Republican control of the Senate is on the line. A brand-new poll reveals that 72 percent of Republican primary voters are dissatisfied with McConnell and Boehner. Only 2 percent of those polled were “very satisfied” with the party’s two congressional leaders, who the majority believe have accomplished essentially nothing. The situation is actually...