Senate Republicans’ commitment to block the confirmation of any nominee to the Consumer Financial Protection Bureau will prevent the agency from deploying all of its supervisory and enforcement powers – at least as far as nonbanks are concerned – and that’s infuriating Senate Democrats. Partisan squabbling was on full display this week as the Senate Banking, Housing and Urban Affairs Committee considered President Obama’s nomination of Richard Cordray, currently chief of enforcement for the CFPB, to be the first director for the fledgling agency. “The purpose of today’s hearing should be to consider whether Mr. Cordray is qualified for that job. Instead...