From FiveThirtyEight: "Clinton got beat on the left on one issue the last time she ran for president: the Iraq War." But in voting for the resolution, she was in the majority of the Democratic party: 58% of Democratic senators (29 of 50) voted for the resolution. In the context of the time, this is not actually surprising. People conveniently forget that the resolution authorized the President the discretion to use force..
We Lefties also said at the time, that the Bush Administration made-up Intel and the vote was based upon that. According to Fronline's documentary on the History of ISIS, VP Cheney's Office DID re-write the analysis from the CIA to promote an invasion, and Powell repeated those made-up "facts" at the U.N. - unwittingly.
For Senators like Sanders, he never violated his principal aversion to war and he didn't let the a-hole conservative neocons ("You're either with us; or against us") embarrass him into not voting for war. Good on him!
