The Democrats haven’t change their tune here is a quote form a 1935 radio speech by Democratic Senator Huey Long promoting a net asset income tax on the wealthy.
1. The fortunes of the multimillionaires and billionaires shall be reduced so that no one person shall own more than a few million dollars to the person. We would do this by a capital levy tax. On the first million that a man was worth we would not impose any tax. We would say, "All right for your first million dollars, but after you get that rich you will have to start helping the balance of us." So we would not levy any capital levy tax on the first million one owned. But on the second million a man owns we would tax that 1 percent, so that every year the man owned the second million dollars he would be taxed $10,000. On the third million we would impose a tax of 2 percent. On the fourth million we would impose a tax of 4 percent. On the fifth million we would impose a tax of 8 percent. On the sixth million we would impose a tax of 16 percent. On the seventh million we would impose a tax of 32 percent. On the eighth million we would impose a tax of 64 percent; and on all over the eighth million we would impose a tax of 100 percent. What this would mean is that the annual tax would bring the biggest fortune down to three or four million dollars to the person because no one could pay taxes very long in the higher brackets. But $3 to 4 million is enough for any one person and his children and his children's children. We cannot allow one to have more than that because it would not leave enough for the balance to have something.

2. We propose to limit the amount any one man can earn in 1 year or inherit to $1 million to the person.

3. Now, by limiting the size of the fortunes and incomes of the big men we will throw into the Government Treasury the money and property from which we will care for the millions of people who have nothing; and with this money we will provide a home and the comforts of home, with such common conveniences as radio and automobile, for every family in America, free of debt.

4. We guarantee food and clothing and employment for everyone who should work by shortening the hours of labor to thirty hours per week, maybe less, and to eleven months per year, maybe less. We would have the hours shortened just so much as would give work to everybody to produce enough for everybody; and if we were to get them down to where they were too short, then we would lengthen them again. As long as all the people working can produce enough of automobiles, radios, homes, schools, and theaters for everyone to have that kind of comfort and convenience, then let us all have work to do and have that much of heaven on earth.

5. We would provide education at the expense of the States and the United States for every child, not only through grammar school and high school but through to a college and vocational education. We would simply extend the Louisiana plan to apply to colleges and all people. Yes; we would have to build thousands of more colleges and employ a hundred thousand more teachers; but we have materials, men, and women who are ready and available for the work. Why have the right to a college education depend upon whether the father or mother is so well to do as to send a boy or girl to college? We would give every child the right to education and a living at birth.

 6. We would give a pension to all persons above 60 years of age in an amount sufficient to support them in comfortable circumstances, excepting those who earn $1,000 per year or who are worth $10,000. 7. Until we could straighten things out and we can straighten things out in two months under our program we would grant a moratorium on all debts which people owe that they cannot pay. And now you have our program, none too big, none too little, but every man a king.