Which of the following rights is not protected by the Sixth Amendment?

the right to trial by an impartial jury

the right to cross-examine witnesses in a trial

the right to remain silent

the right to a speedy trial

The right to remain silent is not protected by the Sixth Amendment, but the Fifth Amendment.

Explanation:

The Sixth Amendment to the Constitution of the United States establishes five principles regarding the rights of the accused in a criminal trial: the right to a rapid and public trial, the right to be tried by an impartial jury, the right to be informed about the charges, the right to summon witnesses and face them, and the right to a lawyer.