this anonymous person telling us the deep state has got your back, that for me is very dangerous and a bad precedent for our democracy. this whistle-blower coming forward and saying we need to fix this, that's democracy in action. this is a patriot. >> that's the difference. tom mueller, author of the new book crisis of con sense, whistle-blowing in an age of fraud. >> thank you, jo. tonight ari melber is hosting trump and ukraine, impeachment crisis. a special live hour looking into the impeachment inquiry and where it's headed. be sure to tune in for that. british authorities want to question a u.s. diplomat's wife after a deadly hit skip incident. the u.s. won't let them. why? that's coming up next.