Special Counsel Robert Mueller has made his first public comment on his investigation into Russian interference in the US 2016 elections and says if he could have declared Donald Trump innocent he would have.
He says his office was legally prohibited from charging President Trump of any wrongdoing.
Mr Mueller's report outlined cases that could be considered obstruction of justice by the president but he reiterated today any decision to act on those matters would be up to the US Congress.
President Trump has tweeted: "Nothing changes from the Mueller Report. There was insufficient evidence and therefore, in our Country [sic], a person is innocent. The case is closed! Thank you."
Our Washington correspondent Simon Marks joins Susie Ferguson to discuss the details.
