William Barr's 'snitty' testimony on handling of Mueller report

The United States Attorney-General is being grilled by senators on his handling of the Mueller report on events leading up to the 2016 presidential election. The Special Counsel Robert Mueller has released his letters to William Barr expressing his concern about Mr Barr's way of describing the findings in the report - which Democrats say was skewed to cast Donald Trump in a favourable light. Mr Barr said he stuck to the bottom line in his summary - which was whether a crime had been committed. Our correspondent in Washington DC Simon Marks talks to Guyon Espiner.