Hillary (Rodham) Clinton for President?

According to a recent CNN poll, Hillary Rodham Clinton would defeat John McCain 51 percent to 44 percent, but Hillary Clinton would be defeated by John McCain 48 percent to 47 percent. The sample size for this poll was only 506, placing the results within the 4.5 percent margin of error. I don't know which is more ridiculous: that CNN is making a story out of a difference that falls within the margin of error or the possibility that the difference might be real. Will the mainstream media ever move away from covering politics like a horse race and actually force candidates to engage issues of substance?