Sinquefield

Rex Sinquefield at the Chess Club and Scholastic Center of St. Louis on May 7, 2012.

Missouri’s most prolific political donor dropped another $1 million into the campaign of his preferred candidate for governor last week, bringing the total he’s spent during the 2024 election cycle to almost $3 million. 

Retired investor Rex Sinquefield has given more than $45 million in contributions since he became a significant donor around 2006 mostly to Republicans, though not exclusively.