The Labour mayor of Greater Manchester, Andy Burnham, has been blocked by the party's ruling body, the NEC, from standing as a candidate in the upcoming parliamentary by-election for Gorton and Denton. He says he's "disappointed" and "concerned". In other news: The parents of a nurse who was shot dead by federal border agents in Minneapolis have accused the Trump administration of telling "sickening lies" about what happened; and two people have died of hypothermia in the US state of Louisiana, as the country is gripped by a severe winter storm described by President Trump as "historic".