The struggle to protect democracy is once again in the spotlight amid the fallout from a violent insurrection against Brazil’s government institutions Sunday by supporters of ousted President Jair Bolsonaro. New President Lula da Silva has vowed to punish those responsible, but with divisions running so deep in Brazil – a country where disinformation is rife – he has his work cut out for him. Celso Amorim is a former foreign minister of Brazil and advises the current president, and he joins the show from the presidential palace in Brasilia, which was also ransacked.  Also on today's show: Susan Glasser, coauthor of The Divider: Trump in the White House; famed historian Doris Kearns Goodwin; actor Hugh Jackman.To learn more about how CNN protects listener privacy, visit cnn.com/privacy