Maybe I'm just following this too closely now and not seeing it, or maybe it's still too early, but I'm wondering... where are all the nobodies? Give or take a Deval Patrick, most potential candidates in this thread are currently holding office (or have done so until very recently). Look at previous primaries, there's always nobodies at the bottom of the heap. People who've been out of office for a while, with very little name recognition. They don't do well. They'll withdraw before votes are cast, or after receiving a dozen votes. Mike Gravel, Lincoln Chafee, George Pataki, Jim Gilmore... and so on. Who's going to fill that spot in 2020? You'd think maybe we'd have more people like that seizing their chance and going for it. Again - maybe I'm following it too closely and just not recognizing it. But I'm not seeing it. Where are the 0.1%ers?
Well Ojeda just announced he's running so there's your answer.
https://theintercept.com/2018/11/11/richard-ojeda-2020-president/