Connor Lamb

J. Scott Applewhite / Associated Press

Connor Lamb shocked the political world last week when he won a special Congressional election in a Pennsylvania district that President Trump carried by 20 points.

He might have also defeated a sense of invincibility for Republicans in two Central Ohio districts.

Updated at 3:50 p.m. ET

Democrat Conor Lamb appears to have won the special election in Pennsylvania's 18th Congressional District, defeating Republican Rick Saccone in an upset for President Trump and congressional Republicans, based on a review of the vote by member station WESA and barring a recount.