Republican Mitt Romney, his running mate Paul Ryan and Vice President Joe Biden all plan campaign stops in Ohio this week. Romney plans to meet with factory workers this afternoon at a plant in Mansfield. Meanwhile, the Obama campaign says Biden will return Wednesday for a campaign visit to Wright State University in southwest Ohio. Biden spent the weekend campaigning across eastern and southern Ohio. The Romney campaign also has Ryan scheduled back in southern Ohio on Wednesday evening, at the Clermont County fairgrounds.