I understand your point about the flat tax being fairer and I find it interesting that, as a wealthy man, he's okay with paying a higher rate.
From a strategic standpoint, it disarms the masses who are already thinking the rich are screwing them. It takes one less weapon away from the Democrats. It's the way I read it.
I guess I could see that argument.
But a good leader needs to communicate and educate the people about what is to THEIR advantage, as Reagan used to point out.