Sue Ann Arnall is hosting a reception with Democratic vice presidential nominee Tim Kaine on Friday at her home in Oklahoma City.
The ex-wife of Continental Resources CEO Harold Hamm, Arnall was awarded nearly $1 billion in a divorce settlement in 2014.
Hamm was one of the chairs of a private fundraiser in Norman on Saturday for Trump and has been an outspoken supporter of the New York real estate mogul.
Donors listed as chairs for Friday's event with Kaine are expected to contribute $50,000. The minimum contribution is $1,000.
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