Try this.
This tweet has a picture of the letter.
https://twitter.com/billyrr3/status/1260377260625809409
Open Memorandum to Barack Obama
from Sidney Powell today
Open Memorandum to Barack Obama
Sidney Powell today
*******************************
When I first heard Odumbo’s leaked conversation, his words reeked of dual interpretation, especially his comment, “...our basic understanding of rule of law is at risk.” His statement seemed more of a threat to the rule of law if certain situations do not go his way. All from the man with “a pen and a phone” who continues to “fundamentally transform” our nation, albeit subversively.
BTW, when I returned to the link you shared, it was deleted - like within 5 minutes of my reading it. I tried a couple of other searches, found different links, but they, too, have been deleted.