Daily Kos digs this one up…….
During Donald Trump’s first impeachment in 2019 (and it’s astounding that we must specify which impeachment we mean), the OLC (“Office of Legal Council”) declared that NO “sitting” president could be criminally prosecuted “while in office” (ostensibly b/c it would be too disruptive, interfering with their ability to do their job.) But once OUT of office, THEN they can be prosecuted for crimes committed while in office (the “logic” being that only the threat of a post-presidency prosecution was left to serve as a check to dissuade any POTUS from freely committing crimes at will while in office.)