From the Texas Tribune: Court: Texas Political Maps Don't Protect Minority Vote

This is huge. Texas' history of racial discrimination made it subject to pre-clearance when the Voting Rights Act was passed in 1965. This is to ensure that discriminatory decisions are checked. The original map drawn up in the 82nd session of the Texas legislature had already been tossed out, but this confirms the previous decision and sets up a Supreme Court challenge to pre-clearance itself.