The Obama re-election campaign is suing Ohio, considered a crucial state in the 2012 presidential election campaign, to restore early voting.

In a suit filed in the U.S. District Court for the Southern District of Ohio, President Obama’s re-election campaign is asking the federal court to overturn action by the Ohio legislature to end early voting for most Ohioans despite allowing military and overseas voters to vote up until the day before election day.

“The last three days of Early Vote are especially important to ensuring a free and fair election,” Obama’s Ohio campaign said in a statement to ABC News. “We are moving forward in the fight to reinstate the last 3 days of Early Voting and ensure that all Ohio voters can make their voices heard this November.”

The statement refers to previous Ohio election law provisions that allowed in-person absentee ballots to be submitted in the three days prior to Election Day. In the 2008 election, early voting was considered key to Obama victory by percentage points, earning the Democrats the state’s 18 electoral votes. The Democrats’ voter mobilization forces bused voters to polling sites and on the weekend before Election Day 2008, long lines snaked around the Board of Elections building in Democratic-dominated Cuyahoga County.

Republicans in the state said that early voting wasn’t consistent statewide and had become a burden on local economies. Ohio Secretary of State Jon Husted (R) says this shouldn’t be an issue if the Democrats want consistency.

“If consistency for voters is the premise that are after, then they should be very pleased with the changes that we made since I became secretary of state,” Husted told the Cleveland Plain Dealer. “If their lawsuit were to be successful, that would not create equal access to voters that weekend before the election because in some counties the boards are open, and in some they are not.”

Husted and other Ohio Republicans told CNN that voters will show up on Election Day if they really care about who the presidential election outcome. Democrats maintain that the revised law is just a tactic to dampen the Obama voter turnout.

“Regardless of who votes on those final three days, it’s a chilling notion that we should be opposed to those who vote in those final three days because they may not vote on our side,” Ohio Democratic Party Chairman Chris Redfern said according to the Plain Dealer.