Milwaukee County Sheriff David Clarke believes that President Trump’s administration understands the seriousness of the opioid epidemic and also sealing up the southern border. “a they [Congress] are going to have to seal that damm border for domestic security issues, national security issues, the heroin, the drug cartels operating freely across the border is a domestic security issuea it doesn’t matter how many people you deport, they are going to find their way back in,” he told the FOX Business Network’s Lou Dobbs.