MADISON, Wis. (AP) — A federal judge on Friday ordered that Wisconsin officials withhold reporting any results from Tuesday’s election until extended absentee balloting is complete April 13.

U.S. District Judge William Conley granted a request from the Wisconsin Elections Commission following his order a day earlier for extended absentee voting. State leaders have been committed to keeping to Tuesday’s election date despite widespread concerns that voters and poll workers are endangered by the coronavirus.

Gov. Tony Evers and others have encouraged people to vote absentee, and more than 1 million people have requested ballots.

Wisconsin is the only state with an April primary that is still moving forward during the coronavirus crisis. The state’s election includes a presidential primary and comes as Joe Biden holds a commanding lead over Bernie Sanders but hasn’t formally clinched the Democratic nomination.

Biden has said it’s up to Wisconsin on how to proceed, while Sanders has called for a delay.

Conley on Thursday declined to postpone Wisconsin’s election, but he ordered that people be given an extra six days beyond Election Day for absentee voting. He also blasted state leaders’ decision not to delay the election to protect people’s health but refused to postpone it himself, saying a federal judge shouldn’t act as the state’s health officer.

“As much as the court would prefer that the Wisconsin Legislature and Governor consider the public health ahead of any political considerations, that does not appear in the cards. Nor is it appropriate for a federal district court to act as the state’s chief health official by taking that step for them,” Conley wrote.

The deadline for voters to get absentee ballots to local clerks had been 8 p.m. on Tuesday, but Conley’s order shifted that to 4 p.m. on April 13. Conley also extended the deadline for voters to request ballots by a day to 5 p.m. Friday.

The judge also lifted a witness requirement for absentee ballot applications, writing that voters can provide a written affirmation that they could not safely obtain a witness signature due to coronavirus fears. On Friday he clarified that voters must provide szuch statements before their ballot is counted.

Republicans supported holding off on election returns until April 13, but they’re appealing the extended absentee period to the 7th U.S. Circuit Court of Appeals. The Republican National Committee and the party had urged Conley to allow the election to proceed as planned.

In a statement, the GOP said the judge’s decision to change the deadline for absentee ballots without any limit on the postmarked date “effectively changes the date of the election” and needs to be reviewed by the appeals court.

The ruling was a partial victory for Democrats and liberal groups who argued that thousands of voters might be disenfranchised because time is running out to file absentee ballots. The groups had filed three lawsuits demanding that Conley postpone in-person voting, extend the deadlines for filing absentee ballots and lift requirements that absentee voters supply photo IDs with their ballot applications and get a witness to sign the ballot before returning it.

“Every voter must count, even during crises, and this ruling gives voters critical time to vote safely by mail,” state Democratic Party Chairman Ben Wikler said.

Several states have postponed elections or shifted to all mail-in the face of the pandemic. But Evers and Republican leaders have been committed to Wisconsin’s date. They argued there’s no guarantee conditions will improve in a couple of months and postponing the election risks leaving many local offices unfilled for an extended period.

Evers’ position on the election has shifted over the last few weeks. During the early days of the outbreak he said he thought the election should go on, a stance that drew considerable criticism from Democratic allies. As it became clear that Evers lacked the authority to change election law he asked the Republican-controlled Legislature to mail absentee ballots to all registered voters, a request the GOP rejected. On Wednesday, he said for the first time that if he could move the election he would.

Poll workers have been quitting in droves. The Wisconsin Election Commission reported Tuesday that more than 100 municipalities lack enough staff to run even one polling site, and requests for absentee ballots have been setting new records daily. As of Thursday, local clerks had issued 1.1 million ballots, with some clerks facing backlogs of requests. Meanwhile, they’re bracing for an avalanche of returns that could take days to count.