President Donald Trump won the 2016 presidential election in part by capturing the white working class vote in Rust Belt states like Pennsylvania, Ohio, Michigan, and Wisconsin that had regularly swung to the Democratic candidate. Some Democrats are trying to rebuild their base by making better inroads where Trump won voters who had supported Barack Obama twice. That would include blue-collar neighborhoods in Northeast Philadelphia, where an up and coming Democratic Congressman, Brendan Boyle, and his brother, who's a state legislator, see themselves as the future of the party. NewsHour Weekend Special Correspondent Jeff Greenfield traveled to Northeast Philadelphia to find out why.