NBC Nightly News Full Episode - Aug. 17

Tonight, a united front from overseas. Leaders on the way to Washington as we speak, pushing for peace in Ukraine. Just hours from now, President Trump set to meet with Ukraine's president after Friday's summit with Russia.And now, multiple key European heads of state heading to the White House for backup tomorrow. Can they avoid the kind of confrontation we saw 6 months ago in the Oval Office. We've got the late developments.Two American cruise passengers drowning in separate incidents at a new resort in t ...