Don't forget warming relations with Russia (those are at an all-time low), and he declined pursuing charges against Clinton while mocking his own supporters for being dumb enough to believe him that he cared about that. That was another cornerstone of his campaign.
He also pays lip service to terminating NAFTA, but no action, and in that same breath, he had iterated Mexico would pay for the wall, as you mentioned, but this month, he cuts a deal that specifically entails that won't happen (even with our own money). He was gonna ban transgenders from the military, but then he didn't.
He ran off to France when he was desperately needed to repeal the ACA. Didn't get that done. Swore he would do it in a month. That was yet another of his core, consistent campaign promises (there were approximately 4). Then, the travel ban, the one and only campaign promise he attempted to follow through on has already effectively been defeated (the original proposal was a 90-day temporary ban, and that period has already expired while ISIS has effectively been routed in Syria & Iraq).
Dude is fuller of hot gas than the Hindenburg.