A new era begins in U.S. politics this week with the inauguration of Joe Biden on Wednesday. He promises to vaccine 100 million Americans in 100 days and help families around the country who are struggling financially as a result of the pandemic. Paul Krugman, the Nobel prize-winning Economist, joins Christiane Amanpour to discuss coronavirus, unemployment, national debt and why now is time for governments to dig deep into their pockets. Mary Trump, clinical psychologist and niece to the current President, and Andrea Bernstein, "Trump Inc." podcast co-host, discuss what will come next for President Trump and his businesses. Then Walter Isaacson speaks to former U.S. Homeland Security Secretary Jeh Johnson about the security failings that led to the insurrection on the Capitol and the state of national security in the run up to the inauguration. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices