President Obama’s use of executive power will be a major issue in this fall’s midterm elections. The GOP is rallying its base to give control of the Senate to Republicans as a check on Obama’s powers, and Speaker John Boehner (R-Ohio) has announced the House will vote in July on a lawsuit against the president’s use of executive power. Obama, for his part, is embracing the criticism. “So sue me,” he said in a speech last week. The White House believes that by using executive power, Obama can distinguish himself from a Congress he wants to pain as dysfunctional and...