https://www.reuters.com/article/us-illinois-budget-idUSKBN1X22RG
Retiring residents of NC are lucky, as NC's state & federal tax exempt bonds are considered ultra-low risk, though there are a few counties that you'd avoid.
Rising Sea Levels Pose Increasing Credit Risks For Many U.S. Coastal States And Investors In Their Bonds
https://www.forbes.com/sites/mayrarodriguezvalladares/2020/09/18/rising-sea-levels-pose-increasing-credit-risks-for-many-us-coastal-states-and-investors-in-their-bonds/