National Opinion studies show president Obama and his opponent in the United States presidential race will almost equal voters' support. Tuesday is the election day, voters will also choose national, states, and local representatives, both president Obama and Republican Party candidate Mitt Romney campaigned on Friday in the state of Ohio, the two candidates disputed the meaning of recent reports on the number of new jobs created in the states, and the number of workers without jobs. Ohio is very important in the election because of the number of the votes it holds in the electoral college. American presidential races are decided by 270 electorals, states choose electorals according to the popular vote.