Joe Lieberman is in big tropuble due to the fact that he continued to support a President who was just a plain f*ck-up. It is so clear that Bush is a f*ck-up that many individual instances of his f*cking up are lost in the mist of all the f*ck ups.
At some point in the future, all of the Bush/Castle f*ck ups and failures will be finally catalogued and known in full. When they are, everyone will know that one of the war planners biggest failures was our failure to create a cohesive "home front".
Lying about the Iraqi WMD's hurt (maybe crippled the effort to create a home front), but like the rest of the war the lack of a "home front" actuallly resulted from a lack of serious thinking about the reality of war. That and the lack of poltical will required to demand that most Americans sacrifice anything for the "war" effort.