DOJ just made that up

The doctrine that a sitting president can't be indicted.

The rationale (per MSNBC) cites absolutely nothing in the actual text and relies entirely on pearl-clutching angst that such a move would "unconstitutionally undermine" (and that use of "unconstitutionally" is an utter bluff) the ability of the president and the executive branch to do their jobs.

But you could say the same or worse for impeachment, which would additionally totally tie up the legislature.

And yet the constitution not only allows but defines and empowers the process of impeachment of a sitting president.

So I call bullshit.