Democrat politicians SALIVATE thinking about the money they can squeeze out of the middle class through capital gains taxes, almost as much as they love the idea of imposing a "wealth" tax.
Democrat voters fall into various categories, including (1) those who are too stupid to understand how capital gains taxes hurt them and their children, (2) those who don't own anything and thus don't give a shit, and (3) those who are so rich they support more radical capital gains taxes because it would allow them to acquire valuable assets from those who can't afford the taxes, would deter potential investors, and because they're financially able to exploit ways to shield/limit their own exposure to the taxes.