the president took the unusual step of inserting himself in an ongoing investigation saying on twitter mike flynn should ask for immunity in that this is a witch-hunt, excuse for a big election loss, by media and dems of historic proportion. white house press secretary sean spicer amplified that position today. >>y will believes mike flynn should go up there and testify and do what he has to do to get the story out. >> reporter: immunity offer for flynn was rebuffed by the senate intelligence committee and drew skepticism from congressmen like jason chaffetz who took issue with the characterization by the president as a witch-hunt. >> it's very mysterious to me why general flynn is out there wanting him immunity. i don't think congress should give him immunity. >> reporter: it all adds up to another head-spinning moment at the white house considering what the president said about immunity last year on the campaign trail. >> if you're not guilty of a crime, why do you need immunity for, right? >> reporter: it was a frequent