Same thing has always happened right back to the Israel-Palestine split, which was caused by the US, not liking the then leader, intervening on the behalf of the "then rebels" to instil a puppet leader. Problem is when it went wrong when the state split.

The US has since then done this to Every middle Eastern leader they didn't like ("legitimate" cause or not).

Saddam came about because of the power vacuum the US created, as did Gadaffi, Isis, right back to Arafat and the PLO on the palenstinian side of it all.

Like you said its the perennial tactic of the Dems.
If they can't find a war on terror, they'll make one.
The republicans seem to favor the war on drugs/oil but they also don't have the need to start ACTUAL wars on false pretences to do it. But I digress.