On Tuesday morning, lines started forming early around the country at polling places as U.S. voters will voice their right in one of the closest elections in recent history. The presidential election could be decided by just one or two key battleground states.

In one of New Hampshire’s tiniest villages, Dixville Notch, voters cast the first votes in the nation for the presidential election. Of the ten people in the town voting, five voted for President Barack Obama, while five voted for Mitt Romney. The tie amongst the ten voters is something that has never happened prior to today. One voter in the tiny village said he was surprised that Obama received as many votes as he did.

Both candidates face worries on this Election Day that have already started to rise to the surface. There are worries over long lines at polling stations, disputes over identification necessary to cast a vote and some locations already disputing the vote.

Both campaigns assembled a legal team to jump the moment a hint of irregularities surface in the voting. In Florida, on Sunday a judge extended the hours for early voting in Orange County. The county is in a key region in a battleground state that is critical for both candidates. Democrats had sued for more time because of the long lines of voters trying to cast their vote.

In New Jersey and New York, election representatives were still trying to resolve issues with voting that Hurricane Sandy created. Online voting there would be extended for polling places that were disrupted from the storm in New Jersey, but that extension was rejected in New York.

Florida, Pennsylvania and Ohio have had battles all summer over new laws for voter identification. In one of the three swing states, as recently as last week, Ohio officials were issuing new rules for the type of ID required.