They can feel it slipping away. The production values between the two conventions could not have been starker, by the way. That video with Stephen Stills and whomever that "singer" was should be preserved for posterity. I think the director of that was the same guy who directed Billy Squier's "Rock Me Tonite" video back in 1984. It certainly looked like it came from that era. A Trump-despising relative of mine who always votes Democrat said in the softest way, worried which voters the Dems may have turned off, "Gee, it was like a no-whites convention," except for the nominee, of course. Everything about the Biden campaign feels like a loser.