Monday, January 6, 2020: Bolton Announces He's Willing to Testify

Breaking News: Former National Security Adviser John Bolton issues a statement saying he's willing and ready to testify in a Senate impeachment trial -- if he's subpoenaed. Skyrocketing tension -- and threats -- between the U.S. and Iran over the targeted killing of Iran's top military commander. And the Iranian crisis injects foreign policy into the Democratic primary race, with four weeks left before the first votes are cast. Today's panel: CNN's Abby Phillip, Julie Pace with the Associated Press, Jackie Kucinich with the Daily Beast, and The Washington Post's Rachael Bade Also on the program: CNN's Kylie Atwood, Manu Raju, Michael Zeldin, Aaron David Miller, Kaitlin Collins, Jeff Zeleny, and Ryan Nobles

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