additional troops to saudi arabia and the uae in response to the attack on saudi oil facilities, which the u.s. has blamed on tehran. much, much more to come on all these big stories, so you want to stick around. as i said, busy week, busy night ahead. we're learning a lot more tonight about the president's call with ukraine's leader, pressuring him to investigate joe biden's son. the question is will congress do anything about it? we'll discuss with susan hennessey and max boot next. woman 1: i had no symptoms of hepatitis c.