media captionThe story of the night so far… His campaign is also hopeful they still can take Arizona. What were the other key results? – Advertisement – In the early hours of Wednesday, Mr Trump announced from the White House that he had won and said he would take the election to the Supreme Court. The BBC projects Mr Biden won Michigan. US media forecast he has won Wisconsin. No result has emerged in Pennsylvania. What legal challenges are afoot? Latest updates: Biden takes MichiganDemocrats hopes of gaining US Senate dwindleUS election results in maps and chartsTables turned as Trump voters start to worry The Democratic challenger said his campaign was feeling “very good” about Pennsylvania. Winning all three of these Rust Belt states would make Mr Biden victorious. The Trump campaign is challenging vote counts in the critical states of Wisconsin, Pennsylvania and Michigan. The Trump campaign said the president would formally request a Wisconsin recount, citing “irregularities in several Wisconsin counties”. What are the campaigns saying? – Advertisement – Republican National Committee Chairwoman Ronna McDaniel said: “The fight’s not over. We’re in it.” Not so fast, said the campaign of Republican President Trump.