"[Y]ou made a... prosecutorial decision, that this would not rise to proof beyond a reasonable doubt, but I ask if you share my concern...[H]ave we established a new normal from this past campaign that is going to apply to future campaigns, so that if any one of us running for the U.S. House, any candidate for the U.S. Senate, any candidate for the Presidency of the United States, aware that if a hostile foreign power is trying to influence an election, has no duty to report that to the FBI or other authorities?"