In Washington, the Special Counsel's Russia investigation has reached the President's Cabinet. The US Justice Department has confirmed that investigators interviewed Attorney General Jeff Sessions last week. He is the highest-ranking Trump administration official to be questioned in the probe. Earlier we talked to CGTN's Roee Ruttenberg for more details.

ROEE RUTTENBERG WASHINGTON DC "It's unclear in what capacity Sessions was interviewed last week. Is he a primary target of the Special Counsel's investigation? Or a top-tier source, to get to the President himself. The Washington Post is reporting that the special counsel Robert Mueller is now seeking to question Donald Trump himself in the coming weeks. He's gotten an indictment of Trump's former campaign chairman Paul Manafort - albeit, on a different issue. He's expected to talk soon with Steven Bannon, Trump's ousted chief strategist. He got General Michael Flynn, Trump's former National Security Adviser, admitting to lying to the FBI, a felony. And, we also learned on Tuesday that Mueller interviewed former FBI Director James Comey last year, for hours. Comey - who was fired by Trump in May - said the President suggested he lay off of Flynn. So some are saying: all of this points to a circle that is closing in on the Trump himself, if not over alleged Russian collusion - which he and his inner team continue to deny -- then on possible obstruction of justice. And - perhaps - other unrelated fields, like money laundering, which we now know Mueller has been looking into. We understand that Sessions spoke with the President at the White House on Monday. And on Tuesday, the President - when asked about Sessions' grilling by the Special Counsel - said he wasn't bothered by it. That might not be the case privately, with some reports suggesting Trump was furious that Sessions didn't share more details with him about the interview with Mueller. Remember, Trump has had a love-hate relationship with Sessions, who was the first big-name Republican to have endorsed him. Just three months into Trump's presidency, Sessions recused himself from the Russia investigation, angering Trump - who reportedly said he would have never appointed Sessions as Attorney General had he known he would do that. He said Sessions' recusal is what paved the way for the whole Special Counsel investigation in the first place. Sessions later resigned, but Trump didn't accept it."