the.com/kingmaker

Too savvy to rule, too dangerous not to invite to dinner.

means A person who doesn't hold power themselves but controls enough influence, money, or votes to decide who does.

from Coined for Richard Neville, the Earl of Warwick, who helped depose and install English kings during the Wars of the Roses in the 1400s without ever claiming the crown himself — the nickname stuck centuries later and widened into any backroom power broker, from political strategists to studio executives.

origin
coined for Earl of Warwick, crowned two kings himself none
modern use
third-party candidate who decides who wins instead
power type
influence without accountability, the best kind
irony
often more powerful than the throne itself
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