Your an asshole Warren.
More accurately, Warren is a starf***er. He has more money than God, so now he amuses himself whooping it up in the halls of power, playing the revered sage and presidential guru.
He just needs the attention.
In more ways than you may know. He favors the high Estate Tax because he owns life insurance companies (He is called The Oracle of Omaha, does he own Mutual of Omaha?) and life insurance proceeds are not taxed. That makes it easier to sell life insurance. He also likes the estate tax because it often forces heirs to sell successful businesses in order to pay the taxes. He then buys the ones he considers real bargains.
He also likes to say that his secretary pays a higher tax rate than he does so taxes on the rich like himself should be raised. He says that because he knows that he and the other wealthy pay very little income tax. They have most of their money in investments and pay capital gains taxes, if any, and the cap gains tax is 15% versus the income tax rate of his secretary which is probably 29%. He is also most likely, like the other wealthy people, has a lot of his money in trusts and foundations which are non-taxable.
He knows that because of that the "taxes on the wealthy" will start at a low enough number to include upper middle class business owners and professionals while not touching the truly wealthy. Those people will bear the brunt of the taxes and many will stop what they are doing when they realize the harder they work and the more successful they become, the less the reward. The winner from their work is the federal government, not them.
Buffet is an evil Leftists. Of course that is the only kind of leftist.