Thankful: The president hugs a volunteer during his visit to a campaign field office in Chicago, near to his South Side home Support: Obama looks at a commemorative 'Obama shoe' that a campaign volunteer asked him to sign outside the office All smiles: President Obama speaks to the media and reveals he is 'confident' that he has enough votes to win the election Getting involved: Vice President Joe Biden, with his wife Jill Biden, right, and granddaughter Natalie, meets with patrons during a visit to the Landmark Restaurant in Cleveland, Ohio At ease: Customers laugh and chat with Biden as he tours the Landmark Restaurant in Cleveland. He arrived in the city minutes after Romney Making friends: Biden kisses a woman during his impromptu stop in Cleveland on his way to meet Obama in Chicago In the spirit: Second-graders Brayden Gentzyel, left, as Obama and Harry Perkins, right, as Mitt Romney, from Valley View Elementary School in the York, Pennsylvania lead a parade of students around the school to encourage people to vote Making a difference: Raena Lamont, 3, wears a Captain America costume at a polling center doubling as a donation site in the Staten Island borough of New York City Determined: Voters crowd an apartment building hallway as they wait to enter a temporary polling station in the Coney Island section of New York after Superstorm Sandy closed voting stations Keen: A light wet snow covers the roof and ground around the Jenkins Town Hall as early voters casts their ballots in Jenkins, Minnesota A world away: Mike Wigart, 30, picks up his ballot at a polling station in the garage of the Los Angeles County lifeguard headquarters