Billionaires like Warren Buffet (https://thehill.com/policy/finance/99096-warren-buffett-increase-my-taxes/ https://thehill.com/policy/finance/99096-warren-buff

Billionaires like Warren Buffet (https://thehill.com/policy/finance/99096-warren-buffett-increase-my-taxes/ https://thehill.com/policy/finance/99096-warren-buffett-incr...) and others have argued to raise taxes on the wealthy - he and other supporters are anyways donating most of their wealth, not leave it as inheritance, so it doesn't make much of a difference to them personally, but having a rule that applies to all the other billionaires as well would obviously bring in much more funding than their own.