How does taxing the ultra-rich actually work?

I do a regular show with financial advisor Mike Morton about personal financial planning.  Today, he and I got into a bit more of a politics, policy, and tax discussion around the idea that we could tax the ultra-rich to pay for social investments. It's a conversation about practical politics, how hard t is to come up with a rational tax policy, and how the ultra rich avoid our best efforts to get them to pay their fair share.