Sen. Chris Coons of Delaware predicted Monday that Republicans will “almost certainly” have to resort to the “nuclear” option to approve the nomination of Judge Neil Gorsuch to the U.S. Supreme Court. Mr. Coons, a member of the Senate Judiciary Committee, which held four days of hearings on the Gorsuch nomination, doesn’t envision Democrats crossing party lines to vote in favor of President Trump’s nominee. “He will get an up or down vote. Sen. Schumer, our minority leader, has said it is going to be a 60-vote margin, and I doubt he is going to get 60 votes. The question...