As Robert Mueller's Russia probe regains momentum after the midterms - where is it headed next?

Set against a White House that has become known for tweets, leaks and tell-all books from former staff, Robert Mueller’s Russia probe has been an oasis of calm and quiet.The investigation has been virtually leak-proof, even with it representing the shadow which has followed Donald Trump through the entire 18 months of his presidency.Weeks of public silence about the probe – imposed due to not wanting to undermine the midterm elections which took place earlier in November – look