Ronna McDaniel, Chairwoman of the Republican National Committee (RNC). is Mitt Romney's niece.
https://theconservativetreehouse.com/2019/01/02/strap-in-romney-didnt-wake-up-this-morning-and-haphazardly-write-an-op-ed-to-attack-the-president-of-his-own-political-party/