 Donald Trump, and he insisted that he is in fact the most qualified Democratic candidate to take on the former president. Here's George Stephanopoulos with his first question. Your friend Nancy Pelosi actually framed the question I think is on the minds of millions of Americans. Was this a bad episode with a sign of a more serious condition? It was a bad episode. No indication of any serious condition. I was exhausted. I didn't listen to my instincts in terms of preparing. And I had a bad night.