In California Vallejo, Stockton, San Bernardino have already reached points of crisis.
Many others will. the promised pension payouts cannot be funded without tax increases, and voters will likely balk when they see the amounts needed.
California has a system which allows government employees to retire as early as age 50 with 90% of highest pay. PLUS health care for retired worker and then spouse for life.
In effect with techniques of increasing the final years with overtime etc., a retiree draws staggering amounts.
My city has a current police chief, plus two or three previous retired chiefs. Each makes over $200,000 in retirement.
Many police and firefighters make over $100,000 in retirement.