SPRINGFIELD, Ohio (CNN) -- Striking back less than an hour after the completion of the Republican National Convention, where he was the subject of countless GOP barbs, Democratic presidential nominee John Kerry re-entered the fray, calling President Bush "unfit to lead this nation."

There is a difference between being positive and defending yourself.

When Bush can stop exporting jobs, lower fuel costs, improve the situation in Iraq and Afghanistan, increase health care coverage, act "fiscally conservative" instead of "cut tax and spend more". When he can do all that......I'll vote for him.