PoliticsDonald Trump's biographerTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoPoliticsBenjamin Bathke11/18/2016November 18, 2016Based on decades of research, biographer David Cay Johnston paints a grim picture of US president-elect Donald Trump. He shared his thoughts on the 70-year-old tycoon-turned-politician.https://p.dw.com/p/2StbYAdvertisement