Mitt Romney fights for votes in southwest Ohio alongside Sen. Rob Portman

WEST CHESTER, Ohio - An estimated 30,000 people came to West Chester, Ohio to see former governor Mitt Romney, as he makes his final lap in the Buckeye state trying to lock down votes.

Many political experts feel Romney is really trying to reach those independent voters, who are still on the fence just days before Election Day.

Democratic operatives are aware of this and are doing their own final push to get votes for President Barack Obama.

"If Mitt Romney cannot carry Hamilton County it becomes extremely difficult to carry the state of Ohio," said Caleb Fox, Democratic Party Chair in nearby Hamilton County.

If he can't carry Ohio it becomes really difficult for him to win the election. It's really that simple.”

Early Friday morning, Sen. Rob Portman joined a group of voters and voted early. Portman said he is encouraging all voters to get out early whether they are Republican or Democrat.

Even though Hamilton County went for Obama in 2008, he feels there is a shift in the county back towards conservatives.

"I think we are going to do very well. If you look at early voting, we are exceeding our expectations and the Democrats are not doing as well as they did in 2008,” Portman said.

Fox said he believes with the changing demographics are the rip for his party to turn the tide. For decades, Hamilton County only supported Republican candidates for the land's highest office. In fact, Hamilton has only supported a Democrat for president five times in more than 100 years.

"When you look at the history of this county, over the last 20 years, it's become a balanced county and one likely to support a Democrat,” Fox said.

Nearly 100 of the top Republican politicians descended on West Chester, including for former New York City Mayor Rudy Giuliani, former presidential candidate Sen. John McCain and golfing great Jack Nicklaus.

Rocker Kid Rock performed for about a half hour and ended his performance with his song, "Born Free", which is played at the end of nearly Romney rally.

Romney will be in Cleveland at the IX Center on Sunday, where he will be joined by Rodney Atkins, Sam Moore, and the Marshall Tucker Band. Doors open at 11:15 a.m., with the event beginning at 1:15 p.m.