Trump 'demands' Justice Department investigate FBI

trump-investigation-fbi-ap US President Donald Trump waves from the White House, in Washington | AP

President Donald Trump is intensifying his pressure on the Justice Department by demanding it open an investigation into whether the FBI infiltrated his presidential campaign.

Trump made the demand Sunday amid days of public venting about the special counsel's Russia investigation, which he has deemed a "witch hunt" that he says has yielded no evidence of collusion between his campaign and Russia.

Just hours later, his lawyer, Rudy Giuliani, said the special counsel has indicated the investigation into the president could be concluded by September if Trump were to sit for an interview in July.

Giuliani told The Associated Press the aim was to wrap up the investigation ahead of the national midterm elections in October.

The office of special counsel Robert Mueller did not respond to a request for comment.