An important part of a challenger's closing strategy is to remind voters of how awful they would feel upon hearing of an incumbent's re-election once the votes were counted. Clinton and Gore did this effectively in 1992, and KE04 have done this in part by saying phrases like "More of the Same."
I'd like to see KE04 mock Bush with the slogan: Four More Fears! The Kerry team could then list the 4 most unpopular aspects of BC. I would suggest the Draft, Outsourcing, Social Security Privatization, and Halliburton/cronyism.
I like this because it taps into people's discontent with Bush and the direction of the country, and it leaves an imprint so strong that it will be impossible not to think during the inevitable republican chants of 4 more years.
What are the 4 things you'd list?