Over the past four years, progressive insurgents have defeated moderate incumbents in Democratic primaries across the country. These politicians have aggressively pursued policies such as the Green New Deal and have been credited with pushing the Biden Administration’s policy priorities to the left. Much of this work is fuelled by grassroots youth movements such as Justice Democrats and the Sunrise Movement. Some worry that the shift will alienate moderate Democrats, and put the Party’s electoral fortunes at risk. Andrew Marantz, a New Yorker staff writer, joins Dorothy Wickenden to discuss the progressive movement within the Democratic Party, and the groups that have helped it gain traction.