No president in history has deserved impeachment more but it would be stupid politically for the Republicans to pursue that option and most of them know it. The Democrats and their cohorts in the mainstream media are already turning a non-existent threat of impeachment into a moneymaking rallying cry to try to get their base energized.
They have misrepresented the investigation into Clinton's misuse of executive powers and resulting impeachment for 20 years, you think there would be any honest reporting this time?
Heck, there isn't even honest reporting about the lesser action of a lawsuit to keep him from exercising powers he doesn't have or the stupidity of anyone in the judiciary who thinks Congress doesn't have standing to sue over illegal changes to established law.