There are no sitting billionaire DNC lawmakers. It is literal party platform, in writing, to tax the rich. Biden increased audits on the rich, made a minimum effective taxrate for the rich, and It was Kamala Harris' campaign promise to make an unrealized gains tax on amounts over a million dollars, which are assets used by billionaires as loan collateral to avoid taxes for their entire life. If you were a billionaire, you would be 2.5x more likely to back the GOP than the DNC, and you would likely have a spot reserved in the front or on stage during a GOP inauguration.