The United Steelworkers of America, AFL-CIO-CLC v. Sadlowski et al., 1981 case revolved around a union rule that limited eligibility for union-wide office to those who had been members and officers at the local level for two years prior to election. The Supreme Court ruled in favor of the United Steelworkers, stating that this rule did not violate Title I of the Labor Management Reporting and Disclosure Act (LMRDA). This act was designed to promote democracy within labor organizations but does not guarantee an absolute right to run for office. The court held that while LMRDA protects every member's right to nominate candidates, it doesn't necessarily protect every member's right to be a candidate. Therefore, unions are allowed some leeway in setting their own internal rules and qualifications for office-holders as long as they do not infringe upon basic democratic principles.

In the dissenting opinion for United Steelworkers of America, AFL-CIO-CLC v. Sadlowski et al., Justice Brennan disagreed with the majority's ruling that a union could limit candidacy for internal office to members who had held lower offices within the union. He argued that this decision violated Section 101(a)(1) of Title I of the Labor Management Reporting and Disclosure Act (LMRDA), which guarantees equal rights to all union members in nominating candidates and voting in elections or referendums. According to Justice Brennan, such restrictions on eligibility were not reasonable qualifications as allowed by Section 401(e) because they did not serve any legitimate interest related to conducting an election or operating a labor organization effectively. Instead, he believed these limitations only served to entrench incumbent leadership and restrict democratic processes within unions.