The enduring power of Donald Trump's approval

Donald Trump lost to Joe Biden a year and a half ago, but the former President's hold on his Republican Party seems to be stronger than ever. He has endorsed more than 150 candidates for the US midterm elections, which are also being seen as a referendum on Trump's enduring popularity. Today, political analyst and author Geoffrey Kabaservice on what drives Donald Trump, and why the world should prepare for his return. Featured: Geoffrey Kabaservice, director of political studies, Niskanen Centre, Washington DC