Voters in Texas’ 27th District will head to the polls Saturday for a special election to replace former Republican Rep. Blake Farenthold, who resigned in April. But the election might not be over for two more months.

With nine candidates from multiple parties competing on one ballot, it is possible they could divide the vote and no one will secure a majority to win the seat outright. That would prolong the election to a runoff, likely in September.

Texas Republican Gov. Greg Abbott pushed for the special election to be held earlier than state law stipulated after Farenthold resigned. He said the district, situated along the state’s Gulf Coast, needed representation in Congress after being hit hard by Hurricane Harvey last year. Farenthold resigned amid an ongoing House Ethics investigation after revelations that he used taxpayer money to settle a sexual harassment case.

Multiple candidates from both parties are on Saturday’s ballot, since there is no partisan primary for a special election. The winner will serve out the rest of Farenthold’s current term.

Before he resigned, Farenthold had already announced he would not seek re-election, prompting a crowded field to replace him. Both parties’ nominees for the general election in November are also on the special election ballot Saturday. Republicans chose Michael Cloud, the former chairman of the Victoria County GOP. And Democrats nominated former congressional aide Eric Holguin, who worked for New York Democratic Rep. Carolyn B. Maloney.