Two Senators, at least one of which openly supports the Mueller investigation:
"Republican senators Charles Grassley (Iowa) and Lindsey Graham (S.C.) on Monday released a letter they sent to the FBI asking that ex-British spy Christopher Steele be investigated for possible criminal violations. Steele authored the anti-Trump “dossier” that was full of false or unverified information, provided to the FBI and leaked to the press in 2016."
But here's the part that could change things:
"[T]he newly-released criminal referral says Steele actually incorporated information that was funneled to him through Clinton associates and the U.S. State Department where Clinton had served as Secretary of State from 2009 to early 2013. In a memo dated Oct. 19, 2016, Steele wrote that a foreign source who was in touch with “a friend of the Clintons” passed him material through a U.S. State Department connection."