Philadelphia's last Republican mayor left office in 1952

Philadelphia police attacked by ATV, dirt bike riders who hurled bricks and bottles at officers

And here’s another horde invasion from last Saturday

A couple hundred dirt bikes, quads and other vehicles just rolled down Broad Street in front of Police HQ — heading south toward City Hall. Most ignored traffic signals, drove on sidewalks and weaved in and out of traffic. pic.twitter.com/B1R8iuaehP

— Joe Holden (@JoeHoldenCBS3) October 15, 2022