US hegemony is the most significant factor in the US economy. With China now dominating global manufacturing and trade in commodities the US is on the defensive regarding its shrinking sphere of power projection.

The oil and gas reserves of Russia and Iran have already fallen to China and Venezuela is another crack in the wall of US global resource hegemony.

Trump appears to be retreating US sphere of influence to the Americas so will be determined to regain control over Venezuelan oil deposits. Will China allow that to happen?

These are the real economics.