RUSH LIMBAUGH CAUGHT IN DRUG RING!

Top-rated radio host Rush Limbaugh has been secretly battling addiction to narcotics — and he’s embroiled in a high-priority drug-ring investigation, The ENQUIRER reveals in a blockbuster exclusive.

His former housekeeper Wilma Cline has told prosecutors that she illegally supplied Rush with thousands of painkillers – including highly dangerous OxyContin — over four years.

The issue that goes on sale today features a world-exclusive interview with Wilma, shows e-mails Rush sent her seeking more and more OxyContin, discloses that Rush has gone through drug detox twice … and much, much more.