Thanks to Left-Leaning Divisions, 10% of Philly's Democratic Presidential Primary Vote Was Write-Ins

The most strident opposition to Biden was in left-leaning University City, where write-ins made up fully a third of the vote, followed by well-educated, high-earning parts of the Riverwards and South Philadelphia. Write-ins made up less than 1% of the citywide total in 2020.

Source: Inquirer analysis by Aseem Shukla of Philadelphia City Commissioners data