and also in sport, the manchester city manager pep guardiola has tested positive for covid—19. he's now isolating and it means he'll miss tomorrow night's fa cup trip to swindon town. it's exactly one year since those extraordinary scenes in washington — of rioters forcing their way into the us capitol building in an attempt to stop congress from certifying joe biden's presidential election victory. in a speech later today to mark the anniversary, president biden is expected to blame donald trump directly for the attack, for which over 700 suspects were arrested. our state department correspondent barbara plett usher has more. the day that the country's political turmoil exploded into violence. it was the worst attack on the capitol in two centuries, playing out for hours on live television. americans watched in horror as armed