Pennsylvania is set to conduct a recount in the ongoing U.S. Senate race, prolonging the announcement of the final election outcome, which has already exceeded a week past Election Day.

Although some news outlets have declared Republican candidate David McCormick the winner, incumbent Democrat Bob Casey has yet to concede.

According to Pennsylvania law, the state must fund a recount if the margin of victory is less than 0.5 percentage points. As of Wednesday night, unofficial counts indicated that McCormick was leading Casey by 0.43 percent, translating to roughly 28,000 votes, based on information from Pennsylvania Secretary of the Commonwealth Al Schmidt.

The Associated Press announced McCormick’s win on November 8, just three days after the election, and Republicans are expected to retain a majority in the Senate regardless of Pennsylvania’s results, thanks to gains in Montana, Ohio, and West Virginia.

Schmidt, a Republican, noted that recounts have been called in Pennsylvania seven times in the past two decades, with four cases confirming the initial election winner. The candidates in the other three instances chose to forgo a recount.

Casey has not opted out of the recount process.

Counties are obligated to initiate the recount by Wednesday and complete it by November 26, Schmidt stated. The results will be published on his office’s website the following day.