I know first hand that we found WMD in Iraq that proved Saddam had not complied with the UN Mandates. So that in itself proves Trump is full of it with his leftwing, Code Pink talking points. He's attacked every Republican from the left since he's been in the race, yet he still has "conservatives" who say they support him. They're loyal to the man, not the values, not the movement, not conservatism, and not the truth.
http://www.nytimes.com/interactive/2014/12/03/world/middleeast/chemical-weapons-iraq-pentagon-secrets.html