The Supreme Court clearly declared the white primary unconstitutional.
Beginning in 1889, the Jaybird Democratic Association in Texas started the practice of holding a primary election to select candidates for the Democratic Party in order to circumvent the Fifteenth Amendment. These candidates, often uncontested, usually were elected to office. Although white voters could participate in this process, black voters were excluded. The Supreme Court, by a vote of eight to one, declared the white primaries unconstitutional. Justice Hugo L. Black
Race and discrimination
Vote, right to