Biden wins Pennsylvania Democratic primary

President Biden won the Democratic primary in Pennsylvania, according to Decision Desk HQ. 

The incumbent has already crossed the delegate threshold needed to score his party nod, but the win in the Keystone State could add as many as 159 delegates into his column, according to a tracker from Decision Desk HQ/The Hill.  

Biden has eclipsed his long-shot Democratic challengers, but the incumbent faced a protest vote as some Democrats express frustration with the administration...