Given the temptations a president might have in dealing with foreign powers, Hamilton’s solution was equally clear: Congress should be involved. “The participation of the whole or a portion of the legislative body in the office of making them,” he wrote of treaties. And in the same vein, the founders gave Congress the power to check a president accused of abusing the power of his office. They expected Congress to render its judgment on the facts.

So, to my fellow Republicans who have been willing only to attack the process, I say: engage in the process. If the president is innocent, use the process to surface those exculpatory facts so that Congress and the country can agree whether or not Mr. Trump should be removed from office. The facts — not rhetoric — should answer this question: Is there an offense serious enough to undo the results of the 2016 election?

A heavy burden to meet, but not an impossible one.