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 ...

Allegheny County Controller Corey O’Connor’s victory in Tuesday’s Democratic primary for Mayor of Pittsburgh provides a ...

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 ...

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

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.

UPDATE 10:05 p.m.: Corey O’Connor wins the Democratic primary for Pittsburgh mayor, according to the Associated Press. UPDATE ...

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

The outcome is the latest in a string of losses in deep-blue cities that has raised questions about the power of progressive ...