If you think pittance bribes from oil companies is enough to sway Trump, you're likely mistaken. Realistic valuations put him at around $2-3 billion, and a large majority of his campaign was self-funded or from small individual donors. No petrol donor will be able to discreetly donate more than he can make just having a portion of his wealth track the market.

There's a lot of things to be said about Trump and economic protectionism, but saying it's entirely fueled by donor pressure is oversimplifying the situation.