See Candidate Page Joe Biden, Climate, Transportation Biden at CNN Climate Town Hall 9/4/19 "We can take millions of vehicles off the road if we have high-speed rail," former Vice President Joe Biden says. "I've been the champion of that for the last 25 years." #ClimateTownHall https://t.co/B8y4m3SMc5 pic.twitter.com/DNHPKJzDT3— CNN (@CNN) September 5, 2019