Jeff Flake: The president is on trial. So are my Senate Republican colleagues.

To my former Senate Republican colleagues,

I don’t envy you.

It might not be fair, but none of the successes, achievements and triumphs you’ve had in public office — whatever bills you’ve passed, hearings you’ve chaired, constituents you have had the privilege of helping — will matter more than your actions in the coming months.

President Trump is on trial. But in a very real sense, so are you. And so is the political party to which we belong.

As we approach the time when you do your constitutional duty and weigh the evidence arrayed against the president, I urge you to remember who we are when we are at our best. And I ask you to remember yourself at your most idealistic.