Not since the "duel in Davenport" has the major party presidential candidates campaigned so closely.
Bush and Democratic challenger John Kerry converge just a few blocks from each other and an hour apart in Milwaukee Monday.
Kerry will address Democrats at an outdoor rally near City Hall shortly after the president speaks at the U.S. Cellular arena.
Wisconsin is considered a must-win state for both candidates, whose campaigns have saturated the state with visits since the primary. Bush lost the state to Al Gore by fewer than 6,000 votes four years ago.
Milwaukee Mayor Tom Barrett says the visit by the two candidates so close together a day before the election is unprecedented.
Bush and Kerry both campaigned in Davenport, Iowa Aug. 4.