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

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

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

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

In the pouring rain, O'Connor paid tribute to what his father, Bob, did 20 years ago after he won his own election.

Less than 24 hours after winning the Democratic primary election, Corey O'Connor paid tribute to his late father, Bob, by ...

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

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

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

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

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