Business giant Mark Cuban is taking on senior Donald Trump advisor Stephen Miller on the issue of tariffs. Cuban, a billionaire known for his business acumen, has vocally opposed some of Trump’s economic policies. Recently, this led to firebrand conservative Tomi Lahren questioning Cuban’s knowledge of international trade and taxes, which in turn caused people to ridicule her. Miller, who in May suggested that he had some evidence that Special Counsel Jack Smith, and not the ex-president, “is the one subverting the law,” decided to start his own fight with Cuban earlier this week. Want more br…