US President-elect Donald Trump has made a fresh assault on America's intelligence community. He said that an intelligence briefing he was due to receive on alleged Russian interference in the 2016 election – which is said to have benefited Mr Trump – had been delayed. But US intelligence officials insisted there had been no delay in the briefing schedule. Several US agencies including the FBI and the CIA believe Russia directed hacks against the Democratic Party and the campaign of its presidential candidate Hillary Clinton, releasing embarrassing information through Wikileaks and other outlets to help Mr Trump win the election.<br/><br/>Mr Trump initially dismissed the claims as ridiculous but subsequently said he would meet US intelligence chiefs to be updated on the facts of this situation. In another development, Mr Trump's pick for secretary of state, Rex Tillerson, has agreed he will cut all ties with Exxon Mobil and comply with conflict-of-interest requirements.