(CNN) - A once-obscure election for a seat on the Wisconsin Supreme Court that turned into a referendum for Gov. Scott Walker's controversial anti-union initiatives is too close to call Wednesday and likely headed toward a recount.
Kevin Kennedy, Wisconsin's chief election official told reporters Wednesday that the unofficial totals show "about a 200 vote difference" between Justice David Prosser, who is expected to be sympathetic toward the governor's policies and JoAnne Kloppenburg, a state attorney general who enjoyed support from several unions.
According to Kennedy, the accountability board is reviewing the ballots and making sure the results are accurate. Once the results are certified, the losing candidate has three business days to decide whether or not to request a recount.
Kloppenburg released a statement Wednesday declaring victory based on the unofficial results.
"Wisconsin voters have spoken and I am grateful for, and humbled by, their confidence and trust. I will be independent and impartial and I will decide cases based on the facts and the law. As I have traveled the State, people tell me they believe partisan politics do not belong in our Courts," Kloppenburg said in a statement. "I look forward to bringing new blood to the Supreme Court and focusing my energy on the important work Wisconsin residents elect Supreme Court justices to do."
Independent groups from the left and right have spent more than $2.5 million dollars over the past two weeks on television commercials to try and influence the outcome of the technically non-partisan election.
Including Prosser, the current court is divided 4-3 between conservative-leaning and liberal-leaning justices. Thus, Prosser's seat could prove decisive to Walker's recent steps to eliminate certain union rights if those policies are contested in the court later this year.
Prosser has said he does not necessarily agree with Walker's moves, but unions nevertheless drummed up support for Kloppenburg, who they believe will be a reliable vote in their corner.
- CNN's Gabriella Schwarz, Alexander Mooney and Paul Steinhauser contributed to this report