Republican Senator Thom Tillis of North Carolina says the nomination of Kevin Warsh to lead the Federal Reserve doesn't change his stance. He still says the criminal investigation into current Chair Jerome Powell is "frivolous" and has to end before he approves any nominee. He speaks on "Bloomberg Surveillance." -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: https://tinyurl.com/