[2] Eight-term incumbent Republican U.S. Representative Tim Murphy was involved in a sex scandal consisting of his allegedly having extramarital sexual relations with a woman and then asking her to have an abortion.

Prior to this, however, a primary candidate was Philip Moses, a high school government teacher.

Official Sample Ballot The major party candidates were Republican Rick Saccone and Democrat Conor Lamb, in a district that Donald Trump carried by almost 20 points in the 2016 presidential election.

[48] The district was contested by a third-party candidate (Libertarian Drew Gray Miller) for the first time since 1996.

The debate was hosted live by WTAE-TV along with the League of Women Voters of Greater Pittsburgh.

NBC News declared Lamb the apparent winner early on the morning of March 14, based on the remaining absentee ballots from Washington County.

[38] A few other outlets declared Lamb the winner in what has been described as "a major upset",[124][125] but others withheld judgment, citing the closeness of the race and the likelihood of a recount.

[127] Allegheny County certified its election results on April 2, making Conor Lamb's victory official.