In this file photo taken on September 1, 2020 US President Donald Trump (R) and US Attorney General William Barr step off Air Force One upon arrival at Andrews Air Force Base in Maryland. US Attorney General Bill Barr gave federal prosecutors blanket authorisation on November 9 to open investigations into voting irregularities in the Presidential Election. AFP
In this file photo taken on September 1, 2020 US President Donald Trump (R) and US Attorney General William Barr step off Air Force One upon arrival at Andrews Air Force Base in Maryland. US Attorney Show more

US Justice Department authorises investigation into Trump's voter fraud claims