Bullshit. There is plenty to impeach him on. We can start with the emoluments clause. We can go to nepotism. We can ...
Republicans don't want to admit that their party is so shit that the voters rejected the best they had to offer for a caricature of an orangatang who is corrupt and unscrupulous. And they don't want to push him out and make it seem like they are making a power grab because he is popular; the people will turn against them.
But they ultimately lack the balls to simply say "our platform is shit."
Don't hold your breath. When he does get impeached... , ... actually, ... hold your breath.Plus, I'm sure even if enough evidences were discovered, I doubt Trump would resign in disgrace like Nixon, I'm willing to bet if he goes down, he will go down with guns ablazing... and hopefully take the entire swamp down with him. Let's just hope he won't start WWIII and take the whole world down with him...