[Cowboy Bob]

Buffet made his billions by paying as little tax as possible, now he wants to close the door behind himself.

Andrew Carnegie was the same. He earned his money during a time when there was no income taxes. But, after he made his bundle, he testified before Congress in support of the Income Tax. Typical Liberal.

At least Carnegie donated a lot of his money to charity (Carnegie libraries, etc.). Maybe at least Buffett could donate his estate to the US Treasury...

[Raycpa]

At least Carnegie donated a lot of his money to charity

Those charities were the method used to maintain their wealth and avoid income tax.