covid variant predicted to dominant cases in the u.s. and china launches three astronauts into space. they're due to dock with china's space station at any moment. ♪ good to have you with us. well, the u.s. president is now back at the white house after the highest stakes summit of his lengthy career. joe biden's big one-on-one meeting with russian president vladimir putin was considered a critical test of his ability to confront that country. the talks lasted just a few hours with both leaders calling them constructive and positive. we were warned from the git-go not to expect any dramatic breakthroughs or tangible results. cnn's kaitlan collins explains