Those senators who defend trump do so to protect their election chances.

For example: lindsey graham was polling well below average when in the first year of trump's administration. graham took trump to task on several occasions. Since the senator has become a bone fide toady his ratings in his home state have risen dramatically. He was cruising to a loss until he sucked onto the trump train.

Facts and criminality mean nothing to the trumpers. I would love to think that people would have the scales dropped from their eyes and they would realize the orange pig for the fraud he is. I haven't seen evidence that that is happening. Intelligent people already know trump is a liar and crook, and they already want him gone. An impeachment only lets him play the victim card. Witness the kavanaugh and thomas hearings. Cry, whine, and throw a temper tantrum and you get support. Disgusting, but unfortunately that is reality.