Thanks to Jeffrey from @DemsAbroad for the following explanation about the differences of voting absentee with your state vs. voting with the Democrats Abroad in the democratic primaries. You can choose either:

Hi there,
As a US citizen living abroad, you have three options... ...when it comes to participating in Primaries.

1. Vote in your state/local party primary in the Spring/Summer 2020.

Some states require that you register/declare a party affiliation before an election, and some have deadlines for this registration. Usually...