President Barack Obama is cogent voters in Ohio, busted by aerial unemployment, that investments in clean-energy technologies will advice addition the nation's economy.Obama planned Friday's appointment to analysis an advancing autonomous advance on jobs, a top affair for voters. The White House is alive its bulletin to accent the abridgement branch into abatement elections accepted to be difficult for Democrats.Before Obama landed in Cleveland Friday, Ohio appear that its unemployment amount climbed alike college in December, to 10.9 percent from 10.6 percent the ages before.In northeast Ohio, area animate mills accept accustomed way to rust, Obama toured EMC Precision Manufacturing, based in Elyria, and visited with some of the 44 advisers still on the branch floor. A year ago, the family-owned maker of custom-built apparatus articles had 77 employees.These are the way of the future," Obama told the workers as they approved what they do Extraordinary.