Gail Collins: Think the president has learned his lesson? Haha.

Pick the worst moment of the Senate impeachment hearings:A) Susan Collins saying it’s OK to keep Donald Trump in office because he’s “learned from this case.”B) A spokeswoman for Jim Risch claiming the senator was not sleeping but just “listening with his eyes closed.”C) Mitch McConnell denouncing partisanship.Well, the McConnell speech during Wednesday’s finale was pretty stunning. “Our adversaries seek to divide us against each other,” the