In just over a year, the special counsel has issued more than a dozen indictments, against Russians accused of working to affect the 2016 election as well as former Trump campaign officials, such as former campaign chief Paul Manafort.
But since the Constitution does not explicitly rule out self-pardons and no president has ever claimed such a power, should President Trump try to pardon himself, the United States legal and political system would be in unchartered territory.
"Even if it's right legally", Noah said Monday on "The Daily Show", that "doesn't sound like a democracy to me".
Numerous Trump campaign associates and other individuals have been interviewed as part of Mueller's investigation.
According to the New York Times, a memo that President Trump's lawyers sent to Special Counsel Robert Mueller acknowledged that the President had dictated a statement about the meeting in Trump Tower that had been released under Trump Jr.'s name. Trump has since fired his legal team and replaced them, in typical Trump fashion, with attorneys who will let him do as he pleases.
That memo, first reported by the New York Times, also asserted that a president has full power over Justice Department investigations and therefore can not be charged with obstruction of justice.
"President Trump is not going to do that".
After all, as Bauer points out, if they really believed their own theories of presidential power, Obama's behavior in even the most paranoid right-wing scenarios about the Hillary Clinton email inquiry would be justified.
One of the central questions around possible obstruction is Trump's decision in May 2017 to abruptly fire then-FBI Director James Comey. "I know he said he would never need to because he didn't do anything wrong, but why would you venture into that territory?"
The memo also said Trump can not be compelled to testify in the Russian Federation investigation.
"Trump is making some incredibly expansive claims of executive power, as though there are no separation of powers limits on his authority. And, once again, the President hasn't done anything wrong, and we feel very comfortable in that front", she said.
Trump's assertion that Mueller's investigation is illegal came only after 13 months of the investigation.
"As only one of two people left who could become President, why wouldn't the Federal Bureau of Investigation or Department of "Justice" have told me that they were secretly investigating Paul Manafort (on charges that were 10 years old and had been previously dropped) during my campaign?" In the only court challenge to that so far, a judge supported Mueller.
And over on TBS, Conan host Conan O'Brien joked of the tweet, "The latest rumor in Washington is that President Trump could decide to pardon himself". But a Justice Department memorandum from 1974 - shortly before the resignation of President Richard Nixon - asserted that the president did not possess such a power.