And the fact that he’s supporting the Trump side in this issue is telling. Rand is not very productive due to his unwillingness to sacrifice his principles - at all - but it adds credibility when he takes a stand on a thing.
Maybe congress could shut this thing down.
Congress can't shut the Mueller thing down anymore than they can pass a law preventing Trump from firing Mueller.
They have constitutional oversight responsibilities but they don't control the Executive Branch.
Trump can fire Mueller and stick a big finger in everyone's face and tell them to go ef themselves.