The outcome of the US presidential election is on a knife-edge, with Donald Trump and his rival Joe Biden neck and neck in key swing states. The BBC reports Trump, a Republican, claimed to have won and vowed to launch a Supreme Court challenge, baselessly alleging fraud. Earlier Biden, a Democrat, said he was “on track” to victory. Meanwhile, European leaders have remained largely tight-lipped this morning, waiting for the result. But even that “too soon to say” approach is an implicit rejection of President Trump’s claim of victory and call to stop the counting. The EU’s chief diplomat, Josep Borrell, offered what he described as a personal view.