WSJ: Battle Heats Up Between Redstone, Viacom

  

Viacom Chief Executive Philippe Dauman, left, and board member George Abrams are suing, following their dismissals from the trust that will oversee Sumner Redstone’s $40 billion media empire when he dies or is incapacitated. WSJ media and marketing bureau chief Amol Sharma discusses with Tanya Rivero.