In the case of Maisenberg v. United States (1957), the appellant, a naturalized U.S. citizen born in Russia, was convicted for refusing to answer questions about his Communist affiliations before the House Committee on Un-American Activities. The Supreme Court upheld his conviction, rejecting Maisenberg's argument that he had been denied due process because he was not informed of his right to counsel or warned about potential self-incrimination risks prior to questioning by Congress. The court ruled that since this was a legislative hearing and not a criminal trial, Fifth Amendment protections did not apply in the same way; therefore there wasn't an obligation for Congress to inform him of these rights beforehand.

In the dissenting opinion for Maisenberg v. United States, it was argued that the majority's decision to uphold Mr. Maisenberg's conviction under the Smith Act violated his First Amendment rights. The dissenting justices believed that there was insufficient evidence to prove that he had advocated for violent overthrow of the government or had any intent to incite such action, which is required by law in order to convict someone under this act. They also expressed concern about potential misuse of this legislation and its chilling effect on free speech if used too broadly or without clear proof of intent and advocacy for violence against the state. Furthermore, they disagreed with how lower courts interpreted "membership" in an organization advocating overthrow as equivalent to active participation or agreement with all its principles - a view they found overly broad and potentially harmful towards individual liberties.