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By Joseph Weber, Christopher Palmeri, and the BusinessWeek staff

To some top executives, President Barack Obama is "rapidly socializing the United States." Others see his initiatives on everything from healthcare reform to the saving of GM as crucial for sparing the U.S. from even deeper economic trouble. We quizzed numerous leaders of small, medium, and large companies on how they think the President has done in his first six months in office. Some give him a failing grade; others, top marks. Read on to see what these business leaders think of the CEO-in-chief.