Former President Donald Trump has been pushing a demand that President Joe Biden submit to a drug test right before their upcoming debate — based on an evidence-free conspiracy theory that Biden is somehow getting pumped up to maintain his alertness when at public speaking events. On the far-right Newsmax network in conversation with Eric Bolling, the former president’s daughter-in-law Lara Trump, who now holds a senior position at the Republican National Committee, echoed this demand. ALSO READ: Wisconsin GOP details aftermath of $2.3 million theft Want more breaking political news? Click for…