A grand jury in North Carolina will determine whether or not to bring charges against any of the individuals involved in an alleged ballot fraud scheme that rocked the congressional election in the state’s 9th District, the News and Observer reported on Friday.

The state’s election board voted to hold a new election in the district after conducting a multi-day hearing on irregularities with mail-in ballots in the district. Several witnesses accused an operative working for the Republican candidate in the race, Mark Harris, of running an illegal voter fraud scheme involving mail-in ballots. Harris’ son also alleged that that he warned his father about the operative’s illegal tactics before he was hired to work for the campaign in testimony that brought the candidate to tears.

The dramatic week ended with the Republican candidate, Mark Harris, calling for a new election and walking out of the hearing before finishing his testimony. It’s not clear whether he will run again for the seat.