WASHINGTON — Supreme Court justices raised tough questions Monday about Arizona’s use of an independent commission to draw legislative maps, in a case crucial for political operators and reformers in California and beyond. Conservative justices, in particular, sounded skeptical about independent redistricting commissions that effectively leave state legislators in the lurch. “It’s giving the power to…

First, they came for campaign finance. Now they’re nibbling away at redistricting without corrupt, power-hungry politicians, and they’re using the Supreme Court to do it. ThinkProgress: It is not at all clear how the Supreme Court will decide Arizona State Legislature v. Arizona Independent Redistricting Commission, a lawsuit brought by the state’s GOP-controlled legislature which challenges…