DH reckons that, although Donnie Dumptruck is in most ways thick as mince, he has a smartness for how he gets a response from people, that he knows what he's doing when he tweets some aggressive idiocy.
I think he is not intelligent in any way - eg he's not thinking 'If I blame other people for messes I created, that will take attention away from me', which is what DH suggests. I think he is so moronic and childish that he genuinely doesn't believe anything bad is his fault
AIBU for thinking he doesn't know what he's doing, it just happens to play well with people who think Trump represents a successful, smart person? Or is he actually calculating the effects of what he says?