A rust belt town’s loyalties divide as Pennsylvania turns purple

Figuring out how places like Ambridge will vote in November could hold the key to the presidency. The Pennsylvania town resisted the "Trump tide" in 2016. But, amid a backdrop of COVID-19 and increasing social unrest, many analysts are finding it impossible to predict how it will go down in 2020. Shawn Donnan, from Bloomberg Businessweek, investigates on-location.