No, he hasn't lost a lot of supporters. As you pointed out, its a much more crowded field compared to last time. A common fallacy I keep seeing people make is assuming that people select a candidate based on their positions, but I've seen no data to support that, and significant evidence that contradicts it. I don't think supporters are divided based on progressive vs centrist ideologies. I think people support a candidate based on who they connect with. This is why Sanders is the most popular second choice for Biden supporters (33% of Biden supporters chose Sanders as their 2nd choice). He's essentially tied with Klobuchar and Bloomberg for 2nd choice among Buttigieg supporters (20% vs 22% for the other two).Bloomberg is a new guy in a crowded field of moderates, Bernie is the liberal standard bearer, has been around, and actually lost a big chunk of supporters since he ran last time.

2020 Democratic Primary
