In the case of National Association for the Advancement of Colored People v. Button, Attorney General of Virginia et al., 1962, the Supreme Court ruled in favor of NAACP (National Association for the Advancement of Colored People). The state law in question prohibited organizations from soliciting legal business and hiring lawyers on behalf of potential litigants. This was seen as an attempt by Virginia to prevent NAACP from pursuing desegregation lawsuits following Brown v. Board decision. The court held that this law violated First Amendment rights because it interfered with freedom to associate collectively for mutual advancement and propagation of lawful ideas - a right not exclusive to political processes but also applicable in litigation context where collective activity is crucial part in expressing meaningful public opinion. Furthermore, it infringed upon Fourteenth Amendment's Equal Protection Clause since racial discrimination was involved here too.

In the dissenting opinion for NAACP v. Button, Justice Harlan argued that the majority's decision to strike down Virginia's barratry laws (laws prohibiting incitement of litigation) was misguided. He contended that these laws were not intended to suppress free speech or association but rather aimed at preventing unethical legal practices such as solicitation and champerty (encouraging lawsuits in which one has no direct interest). Harlan believed that states should have the right to regulate professional conduct within their borders, including setting ethical standards for lawyers. Furthermore, he disagreed with the majority’s view that NAACP’s activities constituted a form of political expression protected by First Amendment rights; instead, he saw them as commercial transactions subject to state regulation. In his view, allowing organizations like NAACP unrestricted ability to solicit clients could lead to an increase in frivolous lawsuits and undermine public confidence in judicial system.