called for hearings before congress, bringing the faa to testify, but also boeing executives and secretary chau, who has supervisory authority over the faa. at the end of the day, it was secretary chau recommending to president trump that they ground these airplanes. but everyone involved in designing, constructing, approving for flight and continuing in flight has really some accountability to provide. and we need to know who knew what when and why they failed to act. >> since i have you here, senator, there is two pieces of senate business i'd like to talk to you than are in motion. today something historic happened in the united states senate. the senate voted to pass a war powers resolution ordering the u.s. to end its involvement in the saudi war in yemen. the u.s. has been providing all kinds of support to that war, refueling for planes particularly as well as support