Golden Finance reports that Ken Griffin, the billionaire founder of Citadel Investments, plans to donate $1 million to U.S. President-elect Trump’s inaugural fund, after previously refusing to donate to Trump’s campaign during this year’s election. . Griffin has made similar donations before, including to Trump's 2017 inauguration and Biden's 2021 inauguration. "I'm sure you're going to see me listed as a donor at the inauguration again," he said Monday after attending a Miami-Dade Urban League event.