It was enough to make Mel Blanc blush. Vice President Kamala Harris, whose “transparently fake” speaking styles have drawn public attention before, is back in the social media spotlight after a Labor Day speech in Detroit on Monday that featured a bellicose Southern drawl unusual in a figure who was born in Oakland, California, and spent much of her teen years in Montreal, Canada. And comparisons to a classic cartoon character were inevitable. “Kamala Harris turned into Foghorn Leghorn,” one conservative social media user commenter wrote in post on X. Kamala Harris turned into Foghorn Leghorn …