President Donald Trump's former chief strategist, Steve Bannon, has been subpoenaed by Special Counsel Robert Mueller to testify before a grand jury in a probe into alleged ties between Russia and Trump's 2016 presidential campaign, the New York Times reported on Tuesday.
It was the first time Mueller is known to have used a subpoena against a member of Trump's inner circle, the Times said. It cited a person with direct knowledge of the matter.
A spokesman for Mueller's office declined comment. Bill Burck, a lawyer for Bannon, could not immediately be reached for comment.