You have read the Constitution, right? The process of removing the President, Vice President et al. is exactly what you describe here. The fact that a GOP controlled Congress has not done so implies they have not found grounds. That's the difference between TFG and Biden.
Describes Crackpot Donnie Trump: He feels that the won the 2020 presidential without evidence. He feels that Barack Obama was born in Kenya without evidence. He feels that the Continental Army had to defend the airports against the British during the American Revolutionary War without evidence.