Richard Heydarian is an Asia-based academic, columnist and author of "The Rise of Duterte: A Populist Revolt Against Elite Democracy" and the "The Indo-Pacific: Trump, China and the New Struggle for Global Mastery."
Sara Duterte's decision not to run for the Philippine presidency opens the way for the son of notorious former dictator Ferdinand Marcos to reclaim a prize the Marcos family has long hankered for.