FALSE - correct answer.

While the Constitution guarantees a trial by an impartial jury,
there is no guarantee that any "peers", which is a social measure,
will be involved.  The idea goes back to the Magna Carta (1215 A. D.)
which was signed between King John of England and his Barons.
Part of this document specified that the Barons could only be tried
and judged before a jury made up of people on the same level as the
Barons (peers) and not by the King.  This was the beginning of the
jury system as we know it today.