In a bid to unify the Democrat party, Joe Biden moves beyond pre-Trump era vision

Attendees await former Vice President Joe Biden, the presumptive Democratic presidential nominee, at a campaign event at Texas Southern University in Houston, March 2, 2020. Trying to win over progressives and aware that the coronavirus crisis is upending the political landscape, Biden is increasingly using the language of systemic disruption.(Tamir Kalifa/The New York Times)