The next governor of Pennsylvania will come from the western end of the state.

The Associated Press has declared Allegheny County Executive Dan Onorato the Democratic Party nominee over three challengers. Onorato will face Attorney General Tom Corbett, who easily defeated Berks County state Rep. Sam Rohrer to capture the GOP nomination.

From The Associated Press:

Dan Onorato, a county executive from western Pennsylvania, has won a four-way race for the Democratic nomination for governor.

Onorato, the highest elected official in Allegheny County, had 44 percent of the vote with returns Tuesday night from one-third of the state's 9,233 precincts.

Each of the other candidates had 25 percent or less. They are state Sen. Anthony Hardy Williams of Philadelphia, state Auditor General Jack Wagner of Pittsburgh and Joe Hoeffel, a suburban Philadelphia county commissioner.