Of course he does.
Via Politico:
Senate Majority Leader Mitch McConnell (R-Ky.) backed calls for a congressional probe into Russian interference in the U.S. election — throwing his support behind a growing call from Senate Republicans to investigate the issue.
But McConnell dismissed calls for a select committee specifically designated for the effort, instead indicating that the main responsibility to probe Russian meddling into the election lies with the Senate Intelligence Committee and its chairman, Sen. Richard Burr (R-N.C.).