Well, although many of the borders here won't "work", this seems to be a variant of the USA fracturing possibly in the early 19th century, due to a foundational document better than the Articles of Confederation but not as strong as the OTL Constitution. There is some consolidation of states, and westward extension. Lots of pother possibilities, but the further west you go the less the borders make sense - assuming some sort of Balkanized North America, you'll probably see a lot of borders that run along "natural divisions" such as mountain ranges or major rivers, not the nice straight lines you get with negotiated borders and/or internal divisions within a country.
For example the disconnected red of Northern Wisconsin and Minnesota and the UP of Michigan does not make sense (the purple in between bits of red). Just one example...