He has a record of supporting adventurist interventions, political subterfuge and covert ops in Afghanistan (pro-Islamos), Yugoslavia (pro-Muslim, anti-Serb), Iran (pro nonexistant separatists) etc. some of his stances show great lack of insight others turned out to bite us in the back.
He is ok on some other issues, but if his advice is on par with his past advice, hr has no business as SecState.
Did he support Iraq? That’s the one Trump opposed before it ever started.