Politico noted that Blankenship might have been referencing a 2014 report from The Nation that reported drugs were once discovered on a shipping vessel owned by the family of Transportation Secretary Elaine Chao, McConnell's wife.
In a Monday radio interview, Blankenship cited the incident as a potential conflict of interest for McConnell and went on to refer to Chao as a "wealthy Chinawoman".
Forget the infamous Hatfields and McCoys - one of the most intense Appalachian feuds these days is being waged between West Virginia GOP Senate candidate Don Blankenship and Kentucky Senator Mitch McConnell.
"One of my goals as US senator will be to ditch Cocaine Mitch", he says. Joe Manchin (D-WV), hit back at his opponent on Twitter last week, calling him a "liar" and demanding "accountability".
Some of Trump's most prominent conservative supporters, particularly those in Bannon's network, have rallied behind state Attorney General Patrick Morrisey, a former Capitol Hill aide who was raised in New Jersey but has served as West Virginia's top lawyer since 2013.
Tuesday night, the three face off in a nationally televised debate on Fox News at 6:30 p.m. EDT.
The provocative dark horse in next week's Republican primary in West Virginia - the heart of Donald Trump country - is a coal baron who spent a year in prison after an explosion at his company's mine killed 29 people. West Virginia deserves better than a fake-Republican.
Ivan Raiklin filed a lawsuit in federal court Tuesday against the Republican Party of Virginia and the state Board of Elections.
Blankenship said he disagreed with a column in the right-leaning Weekly Standard magazine that considered his bid for Senate to be similar to the failed campaigns of Sharron Angle in Nevada and Roy Moore in Alabama.
"What they've said he's actually done (in the criminal case), I don't believe none of that", 21-year-old coal mechanic Zack Ball said while grabbing a bite to eat in the Boone County coal community of Danville.
"Stanley Stewart, a retired miner who was inside the Upper Big Branch mine when it blew up in 2010, calls Blankenship 'ruthless, cold-blooded, cold-hearted, self-centered".
"I know that I was falsely imprisoned", he said, saying that some legal documents called "302s" were withheld from his defense team during his trial.