I agree.
I watched Trump during that interview. It seemed he was (relatively) sure of what happened, but he was sort of holding what he was saying just to be sure.
Not (100%) sure at this point, exactly what happened, it seemed to me.
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If Trump doesn’t understand that it was US operatives that setup the attack, then he’s not as smart as I thought he was.
They’re resisting pulling out of Syria. That’s all it was about.
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