34 hours of oxygen is left for five people missing on a submersible heading to the Titanic. Plus, Hunter Biden agrees to plead guilty to federal criminal charges, most likely avoiding jail time as Republicans call it a sweetheart deal. Also, imprisoned Russian opposition leader Alexei Navalny’s daughter joins OutFront to discuss the political climate in Russia amid the ongoing war and her father's detention. To learn more about how CNN protects listener privacy, visit cnn.com/privacy