Risch says Soleimani was 'ratcheting up' attacks on the U.S.

When the U.S. military killed an elite Iranian general in Iraq on Friday, Washington called it self-defense, while Tehran called it a crime -- and vowed vengeance. Sen. James Risch, R-Idaho, chairman of the Foreign Relations Committee, joins Judy Woodruff to discuss the evidence that Qassem Soleimani presented an imminent threat to American lives and why his assassination "had to be done."