The drug war is a failure, as has been discussed here many times
The system has ended up crushing the small and poor, and usually, whether republican or democrat, the wealthy end up in drug treatment.
In Florida and California, abuse of the type represented in Rush's failure is treated as a medical problem with court ordered and supervised treatment.
Street drugs are the common source of the worst abuses against citizens not involved in trafficking.
But the amount of dope Rush was apparently using, and the high profile he has, may make him an irresistable target to be used as an example.
Ed