Incumbent Ed Gainey and challenger Corey O'Connor were on the ballot in Pittsburgh's Democratic primary for mayor.

Corey O'Connor derailed Mayor Ed Gainey's hopes for a second term with a promise to move the city forward. Only hours after ...

Challenger Corey O’Connor ousted Pittsburgh Mayor Ed Gainey in Tuesday’s Democratic primary election, beating an incumbent in ...

Pittsburgh Mayoral Candidate Corey O’Connor took to the streets to thank voters for his victory in the Democratic primary.

Corey O'Connor's victory in Pittsburgh's Democratic primary marks a significant shift in the city's political landscape, with ...

Allegheny County Controller Corey O’Connor has beaten Pittsburgh Mayor Ed Gainey and will now run to be the city's next mayor ...

Corey O'Connor defeats Pittsburgh Mayor Ed Gainey in Democratic primary that hinged on housing and public safety.

After defeating Pittsburgh Mayor Ed Gainey in the Democratic primary, Corey O'Connor was joined by his wife, kids and sister as they took to the streets of Squirrel Hill with handmade "thank you" ...

Corey O'Connor wins the Democratic mayoral primary in Pittsburgh and carries a "Thank You" sign through the streets.

Your voices and calls for accountable leadership and growth have been heard in this Democratic primary,” O'Connor said.

O’Connor is all but assured of winning November’s general election in a city that hasn’t elected a GOP mayor in nearly a century.