I'm not saying that I agree with all of it, but he does make a solid point about several things. Trump acted like a bully multiple times during the nomination and election cycle. He came into the first debate seemingly unprepared. If I had a child old enough to be watching the process with me, I could see her pointing those things out when I told her not to bully or to do her homework. The white-lash thing is where I break from Van, and that's fine. He's entitled to his perspective.
I watched his exchange with Lewandowski later in the program. Lewandowski was basically needling Van about why Hillary had not conceded the win to Trump yet - constant interruptions and such - and Van had a good response about that. First, the campaign had not conceded because they were waiting on a handful more states to be called - the count was 244 to 20x at that point I believe. Second, it was 2 AM, so a concession speech would wait until the morning. The last point was where I thought he made the best point though. He said that if someone goes into work the next day and had that same exchange with someone who supported the other candidate, that we would never heal a divide in this country.