US election certification: Unprecedented bid to overturn presidential result

Is it all just a bit of political theatre by Trump loyalists or is it a coup attempt? Join us for a special edition as we cover what has up until now always been a ceremonial formality: the US Congress' certification of the presidential winner. Some Republicans are vowing to contest Joe Biden's victory. That triggers a recess of the joint session, with senators and congressmen then going to their respective chambers to debate before reconvening.