Obama speaks in stark terms on Trump's threat to U.S. democracy
04:51Rachel Maddow reacts to Barack Obama's address to the 2020 DNC, pointing out an uncharacteristic tone in the speech and a serious warning to American voters.
Rachel Maddow reacts to Barack Obama's address to the 2020 DNC, pointing out an uncharacteristic tone in the speech and a serious warning to American voters.