<p>President Donald Trump, in his latest shredding of political niceties, suggested Tuesday that his Democratic opponent Joe Biden has taken drugs to improve his performance in debates.</p>.<p>The Republican, who is well behind in the polls, initially insinuated during a Fox News interview that "something was strange" with what he saw as Biden's improvement during the Democratic primary season debates.</p>.<p>Early on, when there were multiple Democratic candidates lined up on stage, Biden was "a disaster" and "grossly incompetent," Trump said. But at a later debate where Biden was one-on-one with leftist rival Bernie Sanders, "he was OK."</p>.<p>Trump told Fox he didn't want to say what he thought was the reason for the improvement.</p>.<p>Seconds later, he did.</p>.<p>"He's taking something or you know, gives him some clarity, or whatever," he said.</p>.<p>Trump repeated his demand that Biden should undergo a drug test before their first of three presidential debates scheduled for September 29.</p>.<p>"I would take one too," he said.</p>.<p>Trump, 74, has for months tried to persuade voters that Biden, 77, is suffering from mental decline.</p>.<p>The former businessman cites Biden's penchant for gaffes -- which some belief to be linked to the Democrat's lifelong struggle with stuttering -- and his reluctance to face unscripted questioning from reporters.</p>.<p>Trump -- who takes questions from reporters almost daily but is known for his own frequently garbled and baffling statements -- said, "Joe is lost. We can't have a president that is mentally lost."</p>.<p>Trump told Fox that, with attacks from the Democrat side gaining intensity, he will now "take the gloves off."</p>
<p>President Donald Trump, in his latest shredding of political niceties, suggested Tuesday that his Democratic opponent Joe Biden has taken drugs to improve his performance in debates.</p>.<p>The Republican, who is well behind in the polls, initially insinuated during a Fox News interview that "something was strange" with what he saw as Biden's improvement during the Democratic primary season debates.</p>.<p>Early on, when there were multiple Democratic candidates lined up on stage, Biden was "a disaster" and "grossly incompetent," Trump said. But at a later debate where Biden was one-on-one with leftist rival Bernie Sanders, "he was OK."</p>.<p>Trump told Fox he didn't want to say what he thought was the reason for the improvement.</p>.<p>Seconds later, he did.</p>.<p>"He's taking something or you know, gives him some clarity, or whatever," he said.</p>.<p>Trump repeated his demand that Biden should undergo a drug test before their first of three presidential debates scheduled for September 29.</p>.<p>"I would take one too," he said.</p>.<p>Trump, 74, has for months tried to persuade voters that Biden, 77, is suffering from mental decline.</p>.<p>The former businessman cites Biden's penchant for gaffes -- which some belief to be linked to the Democrat's lifelong struggle with stuttering -- and his reluctance to face unscripted questioning from reporters.</p>.<p>Trump -- who takes questions from reporters almost daily but is known for his own frequently garbled and baffling statements -- said, "Joe is lost. We can't have a president that is mentally lost."</p>.<p>Trump told Fox that, with attacks from the Democrat side gaining intensity, he will now "take the gloves off."</p>