The claim states the Court ruled that states 'cannot consider race in redistricting'. However, the provided evidence for Louisiana v. Callais shows conflicting outcomes: one source states the court 'blocked the state from using the original map and ordered the legislature to adopt a new map with two majority-Black districts', while another mentions the case was heard in March 2025 and involved arguments that the use of race was not in furtherance of a compelling interest. The claim's assertion of a 'devastating blow' is contradicted by the evidence that the court actually ordered the creation of more majority-Black districts in that specific case.