MILWAUKEE – Election Day is now just four days away. John McCain and Barack Obama probably won’t make it to Wisconsin before next Tuesday, but their campaigns are still staying busy here. Both presidential hopefuls won't be in the state Friday, but the final push to win votes here is still on. With their presidential candidate behind in the polls, Wisconsin Republicans say their best chance at victory is now, in the last days leading up to Election Day. The McCain campaign and the Republican Party are sending 150 volunteers from other states to help out in Wisconsin. They will work with about 7,000 Wisconsin volunteers to contact voters by phone and are going door-to-door. McCain himself is in Ohio Friday. Democrats say they are confident Barack Obama's volunteer-driven organization in Wisconsin will deliver the state for the Illinois senator. Obama will be campaigning in Iowa Friday, but Valerie Biden Owens, sister of vice-presidential nominee Joe Biden, will tour Wisconsin Friday and Saturday. The presidential race is now down to a few big states.