Pennsylvania was won by Vice President Al Gore by a 4.17% margin of victory.

Gore failed to capture Clinton's appeal in strongly Democratic regions such as Pittsburgh and Scranton, and thus carried these areas by a smaller number than his predecessor.

However, opposition to George W. Bush was particularly strong in the suburban counties of Philadelphia; although these areas at the time were typically Republican leaning, they featured a strong culturally liberal bent, and thus Bush was unable to appeal to voters.

Bush became the first Republican ever to win the White House without carrying Delaware County, the first to win the White House without carrying Montgomery County since Rutherford B. Hayes in 1876, the first to win the White House without carrying Bucks County – which he had lost by precisely the same margin he had lost the state as a whole – since Benjamin Harrison in 1888, and the first to win the White House without carrying Lehigh County since William McKinley in 1900.

Vice President Al Gore won 139 pledged and the support of 28 unpledged while U.S.