It’s understandable why the Trump team would see things this way. Trump has gelded the GOP. But it’s also understandable why presidents crafted party unity the old way: the Constitution.

Donald Trump has long complained that Democrats are better at sticking together than Republicans are. He’s already revisited this gripe. In meetings with Republican leaders from the House and ...

At the National Prayer Breakfast in Washington, Mr. Trump took a moment ... coming out of his own White House. Just before his arrival at the Capitol to preach unity, he had gone on a fiery ...