president had invoked constitutional immunity, leaving mr. kupperman uncertain about what to do. constitutional immunity? >> this is this old, totally bogus claim that is not only bogus in and of itself, but he's spr spread it very wide saying as to certain people, you can't even show up. this will never fly. it started with mcgahn, and i guess he's looking for a fast track to get it shut down. >> thank you, gentlemen. we'll be right back. your destination. ♪ (vo) the all-new subaru outback. dog tested. dog approved.