The strongest cane on which Trump can lean is the Republican-controlled Senate. If Trump is impeached by the House and then tried in the Senate, it will require two-thirds of that Republican-controlled body to convict him and remove him from office. Up to now, the Republicans have been slavish in their devotion to the President. Will that slavishness persist as irrefutable evidence of high crimes and misdemeanors comes into public view? Or will enough Republicans stand for the rule of law?