Final answer:
The Supreme Court's decision in Gideon v. Wainwright mandated that states must provide counsel to indigent defendants facing serious charges, utilizing the Fourteenth Amendment's Due Process Clause to extend the Sixth Amendment's guarantee of the right to counsel to state courts.
Step-by-step explanation:
One of the statements that pertains to the case of Gideon vs. Wainwright and the Fourteenth Amendment is that the Supreme Court looked to the amendment to define the rights afforded suspects in state courts. Specifically, the Due Process Clause of the Fourteenth Amendment, which provides that no state shall deprive any person of life, liberty, or property without due process of law, was applied to guarantee the right to counsel provided by the Sixth Amendment for defendants in state courts, not only federal ones.
Thus, the correct statement is that the Supreme Court's decision required states to provide counsel to defendants who cannot afford an attorney, for all types of trials involving serious crimes.
In the landmark decision of Gideon v. Wainwright, the Court unanimously ruled that the denial of counsel to Clarence Earl Gideon violated his rights under the Sixth and Fourteenth Amendments. The ruling mandated that state courts must respect the constitutional guarantee of the right to counsel, setting a precedent that indigent defendants facing felony charges must be supplied with legal representation at the state's expense.