After trading threats with the U.S., Iran said Tuesday night it launched ballistic missiles on Iraqi facilities housing U.S. troops in retaliation for the American killing of Gen. Qassem Soleimani. The attacks come after President Trump and top U.S. officials defended the Soleimani strike, which has been blamed for pushing the U.S. and Iran closer to war. Judy Woodruff and Nick Schifrin report.