Gov. Scott Walker greets prospective voters at the Rock County Dairy Breakfast in Evansville, Wis., on Saturday, in advance of Tuesday's recall vote. Some political analysts say the outcome of that vote could be a harbinger of how the state will go in November's presidential election. (Associated Press)

Gov. Scott Walker greets prospective voters at the Rock County Dairy Breakfast in Evansville, Wis., on Saturday, in advance of Tuesday's recall vote. Some political analysts say the outcome of that vote could be a harbinger of how the state will go in November's presidential election. (Associated Press)