U.S. Senator Jeff Flake (R-AZ) listens as members of the Senate Judiciary Committee meet to vote on the nomination of judge Brett Kavanaugh to be a U.S. Supreme Court associate justice on Capitol Hill in Washington, U.S., September 28, 2018. REUTERS/Jim Bourg

WASHINGTON (Reuters) - U.S. senators are discussing the possibility of opening an FBI inquiry into sexual assault allegations facing Supreme Court nominee Brett Kavanaugh, with a possible one-week delay in a planned Senate vote, CNN reported on Friday.