It’s fairly plausible that most/all government internships are specifically for students, so if you’ve looked carefully and not found things then they may not exist. However, consider looking for local government; it will probably transfer well, especially if you can find internships with large cities or counties/regions.
From what sources I have found/spoken to, this looks like the case. The only internships appear to be student ones and there does not seem to be any non-student equivalents for getting your foot in the door. Networking and connections seem the best route.
It’s fairly plausible that most/all government internships are specifically for students, so if you’ve looked carefully and not found things then they may not exist. However, consider looking for local government; it will probably transfer well, especially if you can find internships with large cities or counties/regions.
From what sources I have found/spoken to, this looks like the case. The only internships appear to be student ones and there does not seem to be any non-student equivalents for getting your foot in the door. Networking and connections seem the best route.