Donald Rumsfeld
3
If you want to accurately blast Rumsfeld, blast him for being what Colin Powell refused to be- a lap dog for Bush. Clinton, Bush 41, Reagan, Carter, Ford, and even Nixon were all open to discussion and alternative ideas. LBJ had the reputation of being the quintessential micro-manager/ "my way or the highway" President. Do some research and you will find that our current President makes LBJ look like the poster boy for open minds. Rumsfeld's greatest fault was believing in Bush to a fault.