Mitt Romney returns to Ohio today. The Republican presidential candidate plans to meet with workers at a factory in Mansfield this afternoon. Vice president Joe Biden made three weekend campaign stops in southeast Ohio. At an Athens rally, Biden said the presidentâs proposal knocks down the nationâs long-term debt by $4 trillion by investing in America. âRomney, Ryan, Republican Congress rejected every effort that every outside group and we offered them to cut the national debt if it contained one single dollar, one single penny in a new tax for millionaires," Biden said. Biden says Romneyâs cuts to Medicare would mean fewer benefits for 30 million people and âmassive cutsâ? to Social Security are also in the Republican plan. Biden says the presidentâs proposal knocks down the nationâs long-term debt by 4 trillion dollars by investing in America.