We know they have hated Trump since he first announced he was running way back in 2015 or so. I saw a video where Nancy Pelosi was being interviewed before the election and she was saying, there's no way he will win.
I have tried and tried to find the video but it must have been scrubbed because the interviewer kept asking her well what if he does win, and she kept saying 'no way' until finally she put out the truth. "well, we'll just have to impeach him then".
So the nasty ass Democrats are so power hungry that they will talk about impeaching a man before he's been even elected and for what reason? Reckon that's it. They'll just make one up. And hell if they didn't make up a total of two reasons those shallow assholes.
All I could find about it is this unrelated article where impeachment was proposed right after he was sworn in.
"The effort to impeach President Donald John Trump is already underway.
"At the moment the new commander in chief was sworn in, a campaign to build public support for his impeachment went live at ImpeachDonaldTrumpNow.org, spearheaded by two liberal advocacy groups aiming to lay the groundwork for his eventual ejection from the White House."