Just wanted to post this memorandum I stumbled on - dated Oct 16, 2020 - and written by Randolph D. Moss, Assistant Attorney General Office of Legal Counsel. It is a memorandum opinion "For the Attorney General" who was William Barr at the time.
The memorandum basically agrees with a 1973 DOJ conclusion that ..... "the indictment and criminal prosecution of a sitting President would unduly interfere with the ability of the executive branch to perform its constitutionally assigned duties, and would thus violate the constitutional separation of powers".
The thing I find most interesting about it is the memorandum's date. 3 months prior to the end of DT's presidency.
Just prior to the Nov 2020 election (and the Big Lie), prior to the Jan 6th insurrection, prior to DT bundling up classified documents with his shirts and shoes and shipping them off to Mar A Lago.
I wonder why they were looking at the constitutionality of charging a sitting president at that time.