“The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.”
At The Hill, Alan Dershowitz answers yes: Supreme Court could overrule an unconstitutional impeachment. From the beginning: President Trump has said that if the House were to impeach him despite his not having committed “high crimes and misdemeanors,” he might seek...
“There is no evil under the sun but what is to be dreaded from men, who may do what they please with impunity: They seldom or never stop at certain degrees of mischief when they have power to go farther; but hurry on from wickedness to wickedness, as far and as fast...