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    Critical Counties - Allegheny, Penn.: Pittsburgh's home

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Critical Counties - Allegheny, Penn.: Pittsburgh's home 01:16

Critical counties: Watch Allegheny County, PA, in this election

Updated 4:04 PM ET, Mon September 26, 2016

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    Critical Counties is a CNN series exploring 11 counties around the country that chief national correspondent John King has identified as key in the 2016 election. These counties could play an outsize role in the election and offer an instructive example of what the political parties have accomplished. Wake County is the fourth county in the series, which runs through Election Day. Explore the other critical counties.

    Washington (CNN)Pittsburgh was a treasure of the industrial age, and as the times have changed, so has it. This blue pocket of the post-industrial United States sits in Allegheny County, a hub of urban and suburban life in western Pennsylvania. Far from the liberal hub of Philadelphia in the east, this county is the heart of battleground Pennsylvania.

    If Hillary Clinton scores a big victory here, it's a strong sign of her chances in this swing state. But if Trump sways this county, or turnout here is low, it could mean he takes Pennsylvania -- putting him a lot closer to overall victory.

    Meet Allegheny County

    What's going on

    Here are a few of Allegheny's notable inventions, companies and people.

    Representation

    Tim
    Murphy
    representative
    Keith
    Rothfus
    representative
    Mike
    Doyle
    representative
    Bob
    Casey Jr.
    senator
    Pat
    Toomey
    senator
    Tom
    Wolf
    governor

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