So long as there is a prospect for the issuance of a pardon by a Vice President once he/she becomes President, or the expiration of the statute of limitations while a President remains in office, the indictment of a sitting President may be the "only" constitutional means for ensuring "Equal Justice Under Law".
That conclusion, of course, is at odds with the official U.S. Department of Justice (DoJ) position that a sitting President cannot be indicted until after he/she leaves office. The DoJ's position is based upon the December 10, 2000 Opinion issued by the DoJ's Office of Legal Counsel (OLC), citing an earlier OLC opinion that "the institution of criminal proceedings 'would interfere with the President's unique official duties, most of which cannot be performed by anyone else.'"
But that position is flawed and is being challenged by a number of legal scholars, including Harvard Law Professor Laurence Tribe, a preeminent constitutional expert, whose famous former students include Supreme Court Chief Justice John Roberts and President Barack Obama.
In a December 10 Boston Globe op-ed and during a subsequent appearance on MSNBC's Last Word with Lawrence O'Donnell (see video below), Tribe noted that the long-controversial OLC opinion lacks the force of a judicial precedent and is at odds with the legal accountability required of all federal officers, including the President...