I do not think Mrs. Obama wants to run. She has always seemed to be the honest one in that family. I probably disagree with her politics but she has said repeatedly she doesn’t want the job. Trump would excoriate her lack of anything resembling a resume for the job. Besides, whoever they run is probably going to lose, candidate don’t want to lose the first time out.
I could see The National Ex-Wife or J. Kerry before Mrs. Obama
I’d imagine they’d put Vermin Supreme on the ticket before Michelle Obama
https://verminsupreme2020.com/
“She has always seemed to be the honest one in that family”
with her sham jobs (paid and not really doing anything), her lies, etc there is very little if any true honesty in her.