saved lives. >>e imately essed ta thas jung d erinno >> the debt ceiling standoff shifts to the white house, where president biden holds a high-level meeting with congressional leaders. >> we have now just two weeks to go. ♪ ♪ >> today, there are new guidelines on breast cancer screenings. how often should we get a mammogram? >> so, you think every other year is not sufficient? >> correct. ♪ ♪ >> every librarian is asking to have one in their space. >> norah: our series, "moms in focus." what happens when a mother sees a problem? she comes up with an innovative way to help other working parents. ♪ ♪ >> lonnie walker gets up. lonnie walker. great effort. >> walker, pull up. walker hits another one! it's the lonnie walker game. >> we don't win the game without lonnie walker tonight, that is