If Saddam Hussein was still around, we would not need US Special Ops in Iraq to suppress al-Qaeda.
Saddam was proved to have “retained capacity” to restart his program (blueprints and Iraqi scientists) and the craven French and Russians were angling to get UN/US sanctions lifted to enable them to spread their inferior hardware development costs with sale to Iraq funded by oil.
If Bush hadn't gone in the sanctions would have expired without further UN action, IIRC.
Meanwhile, it is clear that Qaddafi gave up his nuke program only after he saw what Bush did to Saddam and Iran suspended their program for the same reason.
Now that feckless weakling appeaser Barry is in the White House the Iranians are going full speed ahead.