The Romney and Obama campaigns will be keeping a close eye as the people of Wisconsin go to the polls for Tuesday’s recall vote. With the presidential race nearly neck and neck, the fight over whether Republican Gov. Scott Walker should be replaced may give one of the candidates a chance to pick up crucial swing-state support among Wisconsin’s divided electorate. “The vote here will definitely be seen as a harbinger of things to come,” Wisconsin political consultant Mark Graul told Reuters. “The winning side will have tremendous momentum, and there will be implications far beyond Wisconsin.” Walker is about 7 points ahead of opponent Tom Barrett in recent polls. According to the Center for Public Integrity, the recall election is the most expensive in the state’s history.