How did Trump get where he is? Who was and is his supply chain? Who made him? Who did he 'use' and 'need' to 'build himself'?

Who funds those tech firms? It's not Trump. His power is mostly theater to his constituents and those who funded Trump: spoiler: he's not entirely self funded, and some of his funding is at least from others so he's conflicted in his self interests to others. We call this a classic conflict of interest.