Indeed, we need not look back too far in history to find a prime example of retroactive tax increases. More specifically, in August of 1993, Congress passed the Omnibus Budget Reconciliation Act (OBRA) of 1993, which increased the top ordinary income tax rate to 39.6% and the estate/gift tax rate to 55%. Despite not being enacted until August, the changes were made retroactive to the beginning of 1993.
Seriously, OP?
One thing at a time. FL is moving at light speed for government. Give em a minute...
For the record, I think DeSantis fears no one and nothing.
Democrats do it:
https://www.forbes.com/sites/jeffreylevine/2021/06/11/can-congress-really-increase-taxes-retroactively/?sh=475048dc3888