A poll of rural Americans for the Progressive Farmer magazine found John McCain holding a 50-34 advantage over Barack Obama 90 days before the election. In the poll, conducted by Zogby International, 16% said they were unsure of who they would vote for or planned to vote for another candidate. The poll of 3,000 rural adults found that 17 percent said they planned on switching parties from their vote in 2004.The poll was taken in late May, the same time of a Yonder rural poll that put McCain ahead of Obama 50-41. The Zogby poll asked about Senate and House races, finding that in these more local contests Republicans led Democrats 47-40 among rural residents. The Progressive Farmer is conducting an interactive poll that allows readers to match their preferences with other readers.