I've had some prescription issue for other meds as well. Usually an issue of the insurance or pharmacy, not a political motive. They don't like to give long term supplies given the expiration is 1 year from manufacture.
It's possible it's all imagined, but I don't really understand why a pharmacist would only give one month when the prescription is for multiple months, or why the prescription can't be for longer as to require less doctors visits / bills. We certainly haven't had the same experience picking up other prescriptions.
They aren't just renewing your prescription? Most places see you once, or once per year, and then just keep renewing it.
Most insurances/pharmacies even have partner mail order services where you can turn on auto-renewal and auto-refill. That might be a good option to look into.