The search for the missing OceanGate submersible and its five passengers enters a critical stage as their estimated air supply dwindles. Rescue crews continue to detect banging sounds under water, as the US Navy mobilizes its deep-sea salvage system. Plus, Trump receives the first batch of evidence against him in the classified documents case, which includes audio tapes. And, Wall Street Journal reporter Evan Gershkovich appears in a Russian court to appeal his detention on espionage charges. Also this morning, India's Prime Minister is to address congress but House Democrats say they will boycott his speech over human rights concerns, and a deadly tornado tears through Texas for the second time in less than a week.To learn more about how CNN protects listener privacy, visit cnn.com/privacy