Trump intensifies attacks on head of Russia probe

US President Donald Trump intensified his attacks Tuesday on the special counsel probing possible collusion between Russia and his 2016 electoral campaign, after prosecutors said his former campaign chairman lied to investigators.

Trump's ongoing attacks against the investigation by Special Counsel Robert Mueller have become more virulent this month, after the president installed a new acting attorney general who has strongly criticized Mueller's probe and suggested cutting its purse-strings.

"The Fake News Media builds Bob Mueller up as a Saint, when in actuality he is the exact opposite," Trump said in a series of tweets.

"He is doing TREMENDOUS damage to our Criminal Justice System, where he is only looking at one side and not the other. Heroes will come of this, and it won't be Mueller and his terrible Gang of Angry Democrats."