‘We have to act’: can Biden cut through the gridlock on gun control?

The president has long fought for restrictions but deep divisions have often left him hamstrung

Less than two hours after returning from a five-day trip to Asia, a visit meant to signal American strength, Joe Biden walked slowly into the Roosevelt Room of the White House, visibly shaken, to address one of the nation's greatest weaknesses.

Another bloody mass shooting in America. This time in Uvalde, Texas, where an 18-year-old gunman killed 19 children and two teachers, making it the deadliest shooting at an elementary school since the massacre at Sandy Hook elementary school in Newtown, Connecticut, in 2012.