This is from www.thehill.com live updates:
amb lead down to less than 100 votes
Updated at 10:55 p.m.
With 99 percent of the ballots counted, Lamb leads by just 95 votes.
Some absentee ballots will wait until tomorrow
Updated at 10:53 p.m.
The special election will likely come down to the absentee ballots, but two counties won’t count and post those votes until Wednesday morning: Greene and Washington counties.
Greene and Washington counties’ absentee ballots make up about 20 percent of the total 6,951 absentee ballots.
Here's the breakdown of the estimated absentee ballots in each county: Allegheny (3,750), Greene (203), Washington (1,190) and Westmoreland (1,808).
That news comes as Lamb still leads Saccone by a 0.4-point margin, with 98 percent of precincts reporting.