"I'm returning to the Democratic Party to Support Bernie Sanders"

[hay rick]

55. 5% of the base...

I think the trend is much stronger than that.

I have access to voter registration information in a very red county in Florida. I know the county is not representative, but I have no reason to think the sea change in registrations that I am witnessing is unrepresentative.

Here's the context: overall registrations in this county: R-49.5%, D-25.4%, O (Other)-25.1%
New registrations (Q4, 2014)..................................: R-36.1%, D-20.5%, O (Other)-43.4%
New registrations (Q1, 2015)..................................: R-34.7%, D-14.3%, O (Other)-51.0%

Both major parties are losing registered voters at a calamitous rate. Florida is a closed primary state. The voters who are registering as Independents, NPAs, or other parties are excluded from voting in most of the significant primary elections. They have opted out of the first half of the process and, as you would expect, are less likely to vote in general elections.

This is not an accident...