clean the Augean stables of (something)

To rid a place or entity of a massive or entrenched accumulation of something (often corruption). In Greek mythology, Heracles (Hercules) was tasked with cleaning out the Augean stables, which housed 3,000 immortal cattle and had not been cleaned in 30 years. When he was elected, he pledged to clean the Augean stables of the corruption and abuse that had plagued the local government for decades. Is any gubernatorial candidate actually bold enough to clean the Augean stables of corruption and get our state government back on the right track? This is a very serious scandal at City Hall, but will anyone clean the Augean stables of the rampant lawlessness and nepotism? Nope.