Tom Marino Republican Fred Keller Republican A special election was held on May 21, 2019, to fill the remainder of the term for Pennsylvania's 12th congressional district in the United States House of Representatives for the 116th United States Congress.

Tom Marino, a Republican, resigned from office effective January 23.

As a result of the 2018 elections, Pennsylvania's House delegation to the 116th U.S. Congress took office in early January 2019 with a tie of 9 Republicans and 9 Democrats.

[1] Republican Tom Marino, the incumbent representative for Pennsylvania's 12th congressional district, announced his resignation effective January 23, 2019.

By state law, Governor Tom Wolf was required to call for a special election at least 60 days after the seat became vacant.