6 Eastern states plus California and Washington have joined together in their creation of a wealth tax.
Will Colorado become the 9th state to create a wealth tax.
The following article is well worth the read. Especially for the portion of Roman history in which the empire instituted a similar program:
Wealth taxes have been tried before but they usually get scrapped fast. It can be tough to estimate value on many assets. And it just encourages moving assets and money overseas.
Thomas Sowell: There are no solutions, just trade-offs.