As Democrats inch closer to the 2020 primary elections without a clear front-runner, two prominent liberal super PACs are pouring money into Pennsylvania in an effort to pull working-class voters away from Donald Trump. In separate efforts that nonetheless have striking similarities, Priorities USA and American Bridge have pledged millions of dollars to persuading swing voters in Pennsylvania, Michigan, Florida and Wisconsin that the incumbent Republican president isn't looking out for their interests. "We want to show what life is like for real Pennsylvanians in Trump's economy," said Jack Doyle, director of outreach for Priorities USA’s Pennsylvania effort. "President Trump...