If you had to pick someone whose interests and worldview have been best served by the Trump Admin, you could validly name Lindsey Graham, Ben Shapiro, Tom Cotton, AIPAC, etc.
But the real answer is the surveillance and weapons firm Palantir: massive returns on their donations:
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Virtually the entire US Surveillance State has been consolidated under Palantir's control. While much of MAGA railed against the military-industrial complex, Palantir, under Trump, became its new king.