His what? Everything he did in regime change and interference was an extension of what GWB started. Attempting to mold the whole world to meet globalist agenda is hardly "isolationist".
Am I an isolationist? Yeah. I'm for respecting the sovereignty and borders of ALL nations. Our troops should be protecting our borders. We should be opposed whenever a nation, friend or foe, violates the national integrity of another nation, friend or foe. Regime change initiatives, including training and financing rebel forces opposed to their nation are something I oppose.
He withdrew from Iraq too early and turned most of the country over to ISIS. Everything Bush predicted would happen if we left too early happened. It's brain dead decision and put this country and its citizens at far greater risk of terrorism.
Iran obtaining a nuclear weapon is absolutely a threat to national security and should not be allowed.