North Carolina’s Ninth Congressional District will remain without representation in the House until at least September.

The state elections board, which concluded last month that fraud had tainted November’s voting for the seat, ruled on Monday that a new open primary would be held in the district on May 14 and a new general election on Sept. 10. If a second primary is required — a second-place candidate may request another round of voting if no one receives at least 30 percent of the vote — the general election would be pushed to November.

The off-year race, likely to be competitive, expensive and closely scrutinized for signs of new misconduct, drew a handful of candidates even before the board set the schedule. The filing period for candidates begins next week.

There is scarce precedent for a start-to-finish redo of a congressional election, and officials in both parties are bracing for a season of sharp-edged advertisements and high-profile campaign stops, after a scandal that left North Carolina voters shaken.