In TTL, the winter storm from OTL 2021 was butterflied away.
Texas, as of 2021, remains an independent country, and remaining the world’s “Lone Star” is definitely a significant part of Texas public culture. However, Texas is closely tied to the USA, especially in terms of regional infrastructure projects.
One of the key components of the USA’s grand strategy during the Dewey and Truman administrations in TTL was to ensure that the remaining independent countries of North America remained firmly in the US sphere of influence, especially as military allies. During the first generation after the SGW, the US invested heavily in connecting Mexico, Texas, Quebec, and the nations of Central America to the USA through new road and rail links, as well as other key forms of infrastructure wherever applicable. In the case of Texas, the US also moved to ensure that electrical grids between the two countries remained unified. This means that whenever the USA makes a major change to the national grid, Texas is, for all intents and purposes, part of the same system.