Video: US election 2012: Mitt Romney votes in Massachusetts After casting his ballot, Mr Romney was scheduled to leave for two campaign stops in Pennsylvania and Ohio - an unusual election day move for a presidential candidate, but one he hopes will make the difference in key states. Barack Obama and Mr Romney were essentially tied on the eve of Election Day, but the Democrat has a slight edge in some of the pivotal states where the election will be decided, according to Reuters/Ipsos polling released today. In likely the most important swing state of Ohio, Mr Obama had support of 50 per cent, while Mr Romney was at 46 per cent, but the presidential hopeful said he felt "great" about his chances there as he left the voting centre. Nationally, 48 per cent of likely voters surveyed said they supported Democrat Obama and 46 per cent backed Mr Romney.