LIVE: Nasa SpaceX Demo-2 mission launch with astronauts Robert Behnken and Douglas Hurley

SpaceX Demo-2 mission with NASA astronauts Robert Behnken and Douglas Hurley is expected to launch to the International Space Station. Liftoff has been rescheduled to Saturday after it was called off Wednesday because of thunderclouds and the risk of lightning. The launch is scheduled at British Summer Time. For all the latest politics news, head to our live blog: