This Supreme Court decision marked the NAACP’s first major victory against the Texas white primary. The Court struck down a Texas statute that explicitly barred Black voters from participating in Democratic primaries, ruling that the law violated the Fourteenth Amendment. The case is important not only because it invalidated one form of racial exclusion, but because it revealed how central the Democratic primary was to political power in one-party Texas. As Darlene Clark Hine shows, exclusion from the Democratic primary often meant exclusion from meaningful participation in elections altogether. Michael Klarman also treats the case as an early but limited breakthrough. Texas did not abandon disenfranchisement, but attempted workarounds instead. This source shows the beginning of the archive’s central pattern, legal victory followed by state adaptation and renewed exclusion.