According to Betfair the Democrat Party candidate now has a 87 percent chance of becoming the next leader of the free world. This followed his victories in the crunch states of Wisconsin and Michigan.The new website, buildbackbetter.com, was created “so that the Biden-Harris administration can hit the ground running”.Both Mr Biden and his rival, Donald Trump, have publicly said they believe they are on the path to victory.However as more states declare their results Mr Trump’s chances have fallen sharply and he’s been criticised for making unsubstantiated allegations about election rigging.Ahead of the election Mr Biden was the bookies favourite with a 69 percent chance of victory.His position has strengthened over the past 24 hours as more mail in ballots, which disproportionately favour the Democrats, are counted.On Wednesday the AP news agency called Michigan, a key swing state, for Mr Biden.In 2016 Mr Trump unexpectedly won the state with a margin of just 0.23 percent of the vote.The Democrat candidate is now just six electoral college votes away from securing victory.READ MORE: US Election: Trump tells lawyers ‘pull a rabbit out of a hat’“The crises facing the country are severe — from a pandemic to an economic recession, climate change to racial injustice — and the transition team will continue preparing at full speed so that the Biden-Harris Administration can hit the ground running on Day One.”Mr Biden only needs another six electoral college votes to secure the presidency.His campaign is locked in an intense legal battle with Mr Trump in a number of remaining states.On Wednesday Mr Biden said: “When the count is finished, we believe we will be the winners.“I will govern as an American president. The presidency itself is not a partisan institution.”Mr Trump’s campaign has launched legal action in Georgia and PennsylvaniaThe president argued the election has been rigged against him but didn’t provide supporting evidence.His campaign’s deputy manager, Justin Clark, explained the Georgia legal action in a press release.He said: “Today a Republican poll observer in Georgia witnessed 53 late absentee ballots illegally added to a stack of on-time absentee ballots in Chatham County.“President Trump and the Georgia Republican Party have filed suit to require all Georgia counties to separate any and all late-arriving ballots from all legally cast ballots to ensure a free, fair election in which only legal, valid ballots count.”