<< .... a carefully examination pf his regime's history would reveal a lot of very embarrassing material about its relationship with .... both Democratic and Republican administrations in the US .... >>
You think we have been paying paintball games over there for the last 50 years?
For starters, for what were at the time judged valid strategic reasons the US backed one group of murderous thugs - the Iraqi Bathes - against another murderous group of thugs - the Iranian Mullahs.
While these guys were re-enacted WWI (complete with suicidal mass infantry charges and poison gas), we were providing a half dozen kinds of covert backing to "our" side to counter assistance provided to "their" side everyone involved has blood on their hands, up to their elbows.
This was bi-partisan policy, and we would probably do the same today.
But it wasn't pretty, and a lot of reputations - and some careers - would likely suffer if the story was examined in detail.