Questions were not only surfacing about the November election, where Harris won a narrow victory over Democratic candidate Dan McCready, but also in the GOP primary, where others also found an odd number - as Harris won 95 percent of the absentee-by-mail votes cast in Bladen County against incumbent Rep. Robert Pittenger (R-NC).
Harris is from Charlotte - on the far western end of this district - not from Bladen County; he won the GOP race over Pittenger by just 828 votes.
Asked this week about the possibility that fraud led to his ouster from Congress, Pittinger was blunt in a local television interview.
Earlier this week, the North Carolina Board of Elections refused to certify the results from the Harris-McCready election, but also refused to divulge any details on what was being investigated; the panel will meet on Friday morning.
News organizations reported that North Carolina elections officials seized absentee ballot envelopes and request forms - but not the actual ballots - from Bladen County, soon after the elections.
But reporters have slowly pulled out information which seems to indicate people were collecting absentee ballots from voters in Bladen County - and possibly filling out the vote for the Congressional race, or even discarding the ballots.
So far, no allegations of wrongdoing have been publicly made against the Harris campaign, which has hired lawyers to press the case for a final certification of the election outcome.
The turn of events is getting noticed on Capitol Hill.
"The allegations of voter tampering and fraud in Bladen County are extremely serious and ought to be fully investigated," said Rep. Steny Hoyer (D-MD), the number two Democrat in the U.S. House. "Every vote must be counted."
One note to remember is that even if North Carolina elections officials certify Harris as the winner, the House of Representatives is the final arbiter of election outcomes.
After a very close election in Indiana in 1984, Democrats in the House seated Rep. Frank McCloskey (D-IN) over Republican Rick McIntyre, who had led after the initial count by 34 votes.
After the House review, McCloskey was declared the winner by four votes, leading Republicans to walk out in protest, citing a similar demonstration by Democrats over a disputed election in 1890.