In states like NY these proposals to jack up the Federal marginal tax rate combined with the high city and state income taxes might actually push marginal rates to 100% or more.
They forget that previous high marginal rates were offset by very favorable deductions that were mostly ended by Reagans tax reform. Under the old system I was paying zero in taxes due to depreciation on rental property. After Reagans reform I was paying taxes. Most interest was also deductible.