MOUNT LEBANON, Pa. (AP) — Republicans eyed a recount and a lawsuit over perceived irregularities in a closely watched U.S. House race in Pennsylvania where Democrat Conor Lamb clung to a slender lead Wednesday in the longtime GOP stronghold friendly to President Donald Trump.

With the last batch of absentee ballots counted, Lamb, a 33-year-old former prosecutor and first-time candidate, saw his edge shrink slightly, to 627 votes out of more than 224,000 cast, according to unofficial results.

The four counties in the Pittsburgh-area district reported they had about 375 uncounted provisional, mi...