Bush refused to give Israel the technology (refueling, etc) they needed to bomb Iran. Obama has given it to them.
Would Congress ever have given Bush the power to order the killing of any American anywhere without giving a reason.
And so forth. The More Effective Evil.
And see
http://www.blackagendareport.com/content/barack-obama-vs-those-craaaazy-repu blicans-he-lesser-evil-or-more-effective-evil
Carrol