A foreign affairs expert shared a sobering warning about President Donald Trump during a new interview on MS NOW. Tim Nichols, a staff writer at The Atlantic, told MS NOW's Nicolle Wallace on "Deadline: White House: Weekend" that Trump's personal "defect" appears to be getting worse, and there doesn't appear to be anyone around the president who can blunt the impact of that decline. That is happening at a time when the country is gearing up for one of the most consequential elections in recent history, and Trump has shown signs that he may be unwilling to accept the results if the election goes against him. "We've all kind of gotten used to rolling our eyes and saying, 'Boy, that's really crazy stuff,'" Nichols said. "It's worse than that because it does suggest that there are no limits to what he will try. This is somebody who has demolished a chunk of the White House because he felt like it, and no one stopped him." Nichols added that Trump's recent actions also show that his long-standing "defects" are worsening. "We can focus all day long on the various defects of Donald Trump's personality. They're evident. They've been evident for a good part of his life," Nichols said. "And they're getting much worse now. But the fact of the matter is, no one's stopping him. Not the Republicans." "The Democrats, I think, are doing some of what they can do, but I think they've been underreacting to this, and the American public, which again, has been kind of just ground down by this firehose of lunacy," he added.