change from what's now known as the lockdown generation takes us off the air tonight. and on that note, i wish you all a very good and a safe night. from all our colleagues across the networks of nbc news, thanks for staying up late. i will see you at the end of tomorrow. ♪ ♪ ♪ >> tonight on all in. >> coould a president order seal team six to assassinate a political rival? >> history inside a d. c. courtroom. >> i asked you a yes or no question. could a president who ordered seal team six to assassinate a political rival who was not impeached, could he be subject to criminal prosecution? >> the indicted ex president claims complete immunity. >> i think a qualified yes if he's impeached and convicted first. >> trump's criminal attorney is confronted with trump's impeachment defense. >> after he's out of office, they're gonna arrest him. >> the arguments, the