What is the most, as a percentage of wealth or income, that a politician could propose that the rich be taxed, before the rich use their money to defeat that candidate.

There are plenty of billionaires who have publicly advocated for higher taxes on the wealthy. Bill Gates, Warren Buffet, Michael Bloomberg, George Soros, Howard Schultz to name a few.

But human nature being what it is, there is likely a point at which even those guys might say “That’s really not what I had in mind”.