It makes sense that someone would wear red and someone would wear blue during a presidential debate. Looking back at previous debates, it's typically as you would expect, the Democrat is wearing a blue tie, and the Republican is wearing red. Every once in a while though, it's inexplicably reversed. The fact that it is reversed cannot be coincidental, the last time both candidates wore the same color (from what I can see) was the Bush-Kerry debate.
In these debates just about everything is chosen for a reason, why the (inverse) color coordination?