What's most fascinating about this data is that @ewarren voters split pretty evenly for @JoeBiden and @BernieSanders in the last round: 53% for Sanders, 45% for Biden

This kind of contradicts the common belief that most Warren voters would've backed Sanders if Warren hadn't run https://twitter.com/Aseemru/status/1249164071611572226

Then again, this is a small and abnormal subset of the overall primary electorate, so take it with a grain of salt.