Donald Trump
Former President Donald Trump speaks to supporters during a rally in Pennsylvania.
  • Trump on Saturday is headlining a rally at Temple University in deep blue Philadelphia.
  • The former president hopes to make inroads with Biden's base of Black voters.
  • Trump has focused his campaign message on the economy. But Biden retains deep ties to the city.

For former President Donald Trump, few states anchor his potential path back to the White House more than Pennsylvania.

The former president lost the Keystone State to Biden by 1% in the 2020 election after narrowly winning the state over former Secretary of State Hillary Clinton in 2016.

And a huge part of why Biden won in 2020 was his strong margins in the Philadelphia area — the city and its affluent suburbs — which offset the substantial edge Trump enjoyed.