As tensions continue to escalate between Russia and Ukraine, Martha Raddatz interviews WH National Security Adviser Jake Sullivan about the Biden administration's deterrence strategy and the pressure to increase sanctions against Russia; EXCLUSIVE: After the RNC voted to censure Reps. Cheney & Kinzinger, Martha goes-one-on-one with GOP Rep Michael McCaul on the fractures within his party, heightened U.S.-Russia tensions over Ukraine and Biden’s decision to deploy troops. Plus the Powerhouse Roundtable.