Earlier quoted context omitted.
The top 1% pay 40% of the federal tax revenue. The top 5% pay 60%. California has the highest income tax at 13.3%, the highest federal tax rate is 37%. That makes the top income tax rate 50%.
Before Kennedy it was 91%. Imo we are well bellow the Laffer curve.
To which the common retort is "but nobody actually paid that because prior to the tax code simplifications of the 70s you could trivially reduce your burden in all sorts of ways"