Interesting point/counterpoint on whether the President can engage in obstruction of justice.
On "Fox & Friends," Dershowitz countered that Trump had the constitutional power to fire FBI Director James Comey and to tell the Justice Department who to investigate and who not to investigate.
"If Congress were ever to charge him with obstruction of justice for exercising his constitutional authority under Article II, we'd have a constitutional crisis," Dershowitz said.
He explained that Congress would have to demonstrate "clearly illegal acts" on Trump's part, such as former President Richard Nixon paying "hush money," telling people to lie and destroying evidence in the Watergate scandal.
"There's never been a case in history where a president has been charged with obstruction of justice for merely exercising his constitutional authority. That would cause a constitutional crisis in the United States," Dershowitz said, adding that he hopes Special Counsel Robert Mueller understands that before he considers bringing an indictment or recommending that the matter be referred to Congress.
Judge Napolitano, who differs but not by much:
On "America's Newsroom," Judge Andrew Napolitano came down on the side of Feinstein.
He explained that if Trump asked Comey to end the investigation into Flynn for a non-corrupt purpose - such as if he felt sympathy for his former national security adviser or he wanted the bureau to use its resources on more important matters - it's not obstruction.
However, if Trump did it for a corrupt purpose - such as trying to protect himself or his son-in-law, Jared Kushner, from what Flynn might say - then it is obstruction and there is no presidential immunity, Napolitano said.
"Obstruction of justice is a crime no matter who commits it, if done for a corrupt purpose. It's also an impeachable offense," he said, adding that the charge is "intentionally not easy to prove" for a prosecutor.
Of course, from what we have seen so far Flynn has pled guilty to lying about the commission of a non-crime, so unless Mueller has more, impeaching and removing Trump for "obstructing" the investigation of non-criminal activity will be perceived by many as a Constitutional coup.