I noted, though, that other strong critics of Donald Trump did attend the inauguration. Hillary Clinton went. Vermont Senator Bernie Sanders went. I saw Massachusetts Senator Elizabeth Warren. I saw Congressman James Clyburn, all of whom have been critics of Donald Trump.

Donald Trump, the Republican frontrunner, bypassed the debate before the Iowa caucuses because he objected to the participation of moderator Megyn Kelly as well a press release defending her.Beyond the Trump tantrum, we wondered if this had something bigger to say about the state of the media and politics and how politics is practiced today.

Ted Cruz is trying to have a one-on-one debate with Donald Trump.

Former Republican presidential candidate Carly Fiorina also criticized Donald Trump during the campaign, but now she was arguing that the new president deserves a chance to prove himself, and that, perhaps, you know, having a march just the day after his inauguration is kind of disrespectful.

If [Donald Trump] really has an agenda to help, let him move forward with it. We'll see.

If [Donald Trump] comes forward and if he does that, then, of course, there will be some engagement.

Donald Trump said he didn't think Megyn Kelly had been fair to him. But he also talked about Fox's response to this.