And he's getting pretty popular, too. At the latest Iowa caucus poll, he jumped from 1 to 11% of the votes. Main Victims were Beto and Klobuchar.
Well, he's technically tied with Beto since the margin of error was about 6% on that one. We'll need more to confirm it wasn't a fluke, since the very large polls (10,000+ people sampled) still have him at 1% nationally (and there was a statewide one with him at 3% somewhere?).