Al Gore on DNC, Trump’s ‘trickery’ and Biden on climate

Former Vice President Al Gore is among the few people who know what it’s like to deliver an acceptance speech for a major party’s presidential nomination. In a year when we might not learn the results on Election Day, Gore has a unique perspective. He joins Judy Woodruff to discuss the DNC, his history with Joe Biden and why he believes Biden’s climate platform is critical to “saving the future.”