Written by Jello Biafra, this TL starts with a POD in the early 20th century and tries to explore what a realistic Communist/Socialist United States of America would look like. The timeline is now completed.
You can read the original version here and the finished, definitive version here. The TL also has a Tv Tropes page, available here.
Early 20th Century Timelines
Alternate History Timelines and Scenarios Main Directory