During the past week, I have heard the phrase “civil war” more than at any other time since 1968. Though few are predicting outright violence, more and more sober observers fear that our national divisions are too deep to be bridged by politics as usual.
Let me be clear: I believe that Senate Majority Leader Mitch McConnell’s decision in 2016 to block a hearing for Judge Merrick Garland was an unprincipled exercise of raw power. Mr. McConnell achieved his long-held aim—a conservative majority on the Supreme Court—at the cost...