Look at those first few impeachments and the charges they faced
https://history.house.gov/Institution/Impeachment/Impeachment-List/
It's not always an actual crime.
History is your teacher.
In its comprehensive 1974 report, “Constitutional Grounds for Presidential Impeachment,†the House Judiciary Committee impeachment inquiry staff identified three categories of misconduct held to be impeachable offenses in American constitutional history: abuse of power, using one’s post for personal gain, and “behaving in a manner grossly incompatible with the proper function and purpose of the office.â€
Those are our precedents.
Yeah, uh.... no. Here's your problem. Most Americans have access to the internet and have knowledge of how rabidly partisan this entire fiasco put on by the rats has been. Even folks that did not vote for or support Trump are seeing what the Democrat hacks are up to and disapprove. There's probably only about a third of hard-core leftists that support what Pelosi & Co. are doing and have done. Most are reveling in having more money to spend, no shortage of jobs to apply for and a resultant booming economy in which to raise their kids. Most of those folks do not want to go back to the deliberate stagnation that the commie left always brings to America.
Hell, most even remember the Misery Index that Jimmy Carter inflicted us with. Bill Clinton had a lame duck presidency, with Republicans in control of Congress.... resulting in a balanced budget finally, via Newt's Contract With America. Bubba took the credit, of course, but he had to be dragged, kicking and screaming to finally vote approval (he vetoed the first time) for that overwhelmingly popular GOP bill. America won, the Democrats lost.
And then under GWB I remember economists calling it the "Goldilocks Economy"... not too hot, not to cold, just right.... which the idiot left media all pointedly ignored and refused to report on. If not for the internet and talk show radio hosts like Rush Limbaugh, nobody would have known. But we did know and we know one helluva lot more now.....much to the chagrin of the radical left DemocRats. Much like we know how the Democrats deliberately melted down and collapsed the economy under Bush so they could blame him and regain power. And it worked. It proved they are willing to trash the entire nation just to get back in the WH. But it won't work again.
BECAUSE WE KNOW. And they can try it again at their own peril.