If Trump issues pardons, impeachment will come even faster.
Blue-state AGs are just chomping at the bit to thwart Trump pardons with state charges, just to show that they are mostly ineffective. I don't suppose anybody has bothered to tell Trump? I bet they are all waiting until the day a pardon is announced to file, just to demoralize the opposition.
And remember what a pain in the ass Daryl Issa was? We would have his House committee that does nothing but investigate government, but run by a Democrat with power to investigate, subpoena, charge uncooperative folks with Contempt of Congress, and publish endless malfeasance reports. It would be Bengazi all over again, but with actual crimes and criminals!
I think Trump is toast without both Houses of Congress to cover for him.