BALDWIN: The race for 2020 is entering a whole new phase this week, as more diverse Nevada holds its caucuses and a new face joins the Democratic debate stage tomorrow. Former New York City Mayor Michael Bloomberg has just qualified to face off against his rivals. And it's a big deal, because this is the first time voters will get to hear from the billionaire who's been criticized for trying to buy his way into the White House. Arick Wierson worked alongside Bloomberg for nearly nine years. So, Arick, thank you so much for being here.</s>ARICK WIERSON, FORMER MEDIA ADVISER TO MICHAEL BLOOMBERG: Good to see you. Brooke. How you doing?</s>BALDWIN: I'm -- I'm -- it's been a wild afternoon, but I'm hanging in there.</s>BALDWIN: Let me ask you about your opinion piece for CNN.com that argues Bloomberg would be better off actually sitting this debate out tomorrow night. Why do you think that is?</s>WIERSON: Well, he's obviously going to do the debate. So, I think that's -- that's something of the past. But I think that -- I would have recommended that he stay off the debate stage.
Bloomberg Set to Debate Democratic Rivals