(CNN) -- Sen. John McCain played offense against Sen. Barack Obama during much of the final presidential debate as he challenged his rival on his policies, judgment and character. Obama said he is the candidate who can bring "fundamental change" to the country and continued to try to link McCain to President Bush. In one of the more forceful moments of the debate, McCain turned to Obama and said, "I am not President Bush." "If you want to run against President Bush, you should have run four years ago. I'm going to give a new direction to this economy and this country," the Arizona senator said. Watch McCain say he's no Bush »
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NEW: More viewers say Obama won the debate, poll shows
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NEW: Candidates debate Bill Ayers, John Lewis, negativity
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NEW: McCain, Obama make frequent mention of "Joe the plumber"
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McCain, Obama start debate with talk of economic plans
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