Please, stop using talking points like "disinformation". So sick of it. The point is that if you create a new tax bracket that is $10 million, there will be many new tax brackets between $10 million and the current top tax bracket of $500K. It is extremely naive to believe that creating such a high tax bracket will be a one off and it's extremely naive to believe creating such a high tax rate won't drag the lower ones a tad bit higher.
Just like lowering the highest tax bracket and tax rate lowered the tax brackets and tax rates below it. Creating a new highest tax bracket will do the opposite.
But then again, it's my opinion not "disinformation".