Yeah, Trump isn't the president you want doing regime change in your country. He's completely corrupt, and he's showing it in Venezuela - doesn't even mind leaving the old regime in place as long as he can get to your oil. Several orders of magnitude worse than Bush, and that's already pretty bad. I would expect him to try to work with the criminal syndicates in Venezuela and to try to come to an agreement with Russia and China for their influence in the region in exchange for giving them a blind eye to their own imperial goals elsewhere.
From the start he's been trying to side with the dictators of the world who want to divide it up under regions of control, and he has done everything to undermine diplomacy, soft power, and cooperation. The reason he does not prop up Machado is because he wants a despot, not democracy. It's no surprise, given he's one himself propped up by the richest people on Earth.
He sees himself as controlling all social networks on the planet and as such the narrative, controlling the supply to modern computing and as such all major industries everywhere, and controlling all the most advanced military weapons on the planet. His goal is to strong arm the entire planet while having more unstable and chaotic control over it all, a recipe for disaster on a global scale that will make the overabused concept of weapons of mass destruction end up seeming ironic.