The hunt is on for the next White House chief of staff. With John Kelly stepping down, President Trump is looking for someone who can steer his White House in what is expected to be a chaotic 2019. David Meyers speaks with Bloomberg White House reporter Shannon Pettypiece about the top candidates for the role and the challenges that lie ahead for the winner.  FOLLOW UP Shannon's latest report: Trump Struggles to Fill Toughest Job in Washington: His ChiefYou can follow Shannon at: @spettypi ---- TicToc is a daily news podcast hosted by David Meyers (@davidfmeyers), produced at Bloomberg Worldwide HQ in New York City. You can follow up with us and watch our reporting @tictoc. If you like it, be sure to rate us on iTunes, and tell your friends!