The Worker Adjustment & Retraining Notification (WARN) Act is a Federal law that says that your employer must give you 60 days written notice before you are laid off, and they must pay you for these 60 days.
The WARN money is in addition to any severance payments you may be entitled to
In many states, there is also a state version of the WARN law
Federal WARN ACT
https://www.dol.gov/agencies/eta/layoffs/warn
Minnesota WARN ACT
https://mn.gov/deed/business/starting-business/basics/plant-closings.jsp
If your employer fails to provide the required 60 days notice and pay you for 60 days, you may file a complaint with the Federal Department of Labor (DOL). You may also file a complaint with the state agency that enforces this law. For example, if you live in Wisconsin, type
Wisconsin and Warn ACT in any search engine to identify the Wisconsin agency that enforces the Wisconsin Warn Act