Could judge's ruling on voter rolls affect 2020 election cycle?

WISCONSIN (CBS 58) -- In a key battleground state, what impact could purging hundreds of thousands of voters from the state's voter rolls have during the 2020 election cycle?

In 2016, President Donald Trump won Wisconsin by less than 23,000 votes. Now, an Ozaukee County judge is ordering the state to strike up to ten times that many voters from the state's voter rolls because they may have moved.

"I don't know that it will affect the outcome (of the election) and sway it per se, but I do know that our elections are close and that there is a good chunk of people who are swing voters," said Erin Grunze, executive director of the League Of Women Voters Of Wisconsin.

Grunze said the league is still weighing its options, but the group has indicated that it will appeal the ruling.

In October, the Wisconsin Elections Commission mailed letters to 234,000 voters asking them to update their voter registration information if they had moved or let their clerks know if they hadn't.

The conservative group Wisconsin Institute for Law and Liberty, or WILL, sued on behalf of a handful of voters, arguing that state law required the commission to remove voters from the rolls 30 days after sending the letter if they hadn't heard back.

"Part of the problem that we were trying to address is that ... there are people on this list that shouldn't be," Grunze said.

WILL's lawyers are now celebrating their victory in court, saying it's "exactly what we wanted to happen."

"From the very beginning, we have said this is a narrow issue. It's about enforcing the law as it's written and holding a rogue state agency accountable," said WILL's deputy counsel, Lucas Vebber.

Ben Wikler, chairman of the Democratic Party of Wisconsin, said in a statement that the the judge's decision should be overturned.

"But whether or not it is, it’s on us to organize the Dems that the GOP is trying to suppress and make their plan backfire," Wikler said.

Vebber said anyone who is purged from the voter rolls is able to re-register at anytime, including on Election Day. He called it a "red herring" to say that WILL's efforts are an attempt to squash one political party over another.

"We don't know who these folks (on the voter rolls) are. We don't have their names. We certainly don't know how they voted in the past. We have no idea how they'll vote in the future," Vebber said.

The Republican Party of Wisconsin did not respond to CBS 58's request for comment.