Paul Nehlen, a Republican challenging House Speaker Paul Ryan in his local Wisconsin primary filmed himself carrying a huge black box labelled: "DRUGS" back-and-forth across the Mexican border.



"Smuggling drugs into America shouldn't be this easy," Nehlen says. "But it is."



"Cheap Mexican heroin is killing Americans in record numbers, and it has got to stop. Paul Ryan has had 18 years to fix this. He has failed."



"I'm going to keep the cartels from killing our kids," he said.



"Paul Ryan's open borders are killing our kids. Enough is enough. It's time to quit playing politics, quit bowing to big money open border interests and get serious about securing our wide open borders," his campaign said in a statement.