The judicial ethics complaints filed against Justice Brett Kavanaugh over his bruising U.S. Senate confirmation hearings in Washington face significant questions and potential roadblocks on the path to any definitive resolution.

Chief Justice John Roberts Jr. on Wednesday sent more than a dozen complaints to the judicial council of the U.S. Court of Appeals for the Tenth Circuit to review, part of a routine process in which a court with no direct ties to the accused judge is asked to review ethics claims.