The Brotherhood of Railroad Trainmen et al. v. Howard et al., 1951, was a U.S Supreme Court case that dealt with the issue of racial discrimination in labor unions. The Brotherhood of Railroad Trainmen had excluded African American workers from full membership, relegating them to an auxiliary organization without voting rights or equal benefits. This practice was challenged by Howard and other black railroad workers who argued it violated their constitutional rights under the Equal Protection Clause of the Fourteenth Amendment. In its decision, the Supreme Court ruled unanimously against the union's discriminatory practices stating they were unconstitutional and unlawful under federal law which prohibits race-based exclusion within interstate commerce industries such as railroads. The court held that all members should be treated equally regardless of their race or color and ordered for immediate cessation of these discriminatory practices. This landmark ruling played a significant role in advancing civil rights movement during this era by affirming legal protections against racial discrimination at workplaces especially within labor unions.

In the dissenting opinion for Brotherhood of Railroad Trainmen et al. v. Howard et al., Justice Robert H. Jackson argued that the majority's decision to uphold a racially discriminatory union membership policy was inconsistent with federal law and precedent, which prohibit such discrimination in labor unions. He contended that by allowing this practice to continue, the Court was effectively endorsing racial segregation within unions and undermining efforts towards achieving equality in employment opportunities for all workers regardless of race or color. Furthermore, he expressed concern over how this ruling could potentially embolden other organizations to adopt similar discriminatory policies under the guise of protecting their members' interests or maintaining internal harmony among them.