MTP Compressed: Iran and impeachment dominate headlines in lead-up to Iowa caucuses

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In case you missed it: National Security Adviser Robert O’Brien and Foreign Relations Committee member Sen. Rand Paul (R-Ky.) joined Chuck to discuss tensions with Iran. Plus, presidential candidate Sen. Michael Bennet (D-Colo.) talked the coming impeachment trial in the Senate, and the state of the 2020 Democratic primary.