Andrew Jackson's famous $($if perhaps apocryphal$)$ comment that, "John Marshall has made his decision; now let him enforce it$,"$ illustrates the fact that

the decisions of the Supreme Court have little relevance outside the cloistered world of the legal profession.

the Supreme Court did not always have the institutional power to enforce its decisions that it enjoys today.

only the president can decide whether or not Supreme Court decisions will be enacted.

elected officials can safely ignore the decisions of the Supreme Court, because few offices experience as much turnover as that of the Supreme Court justice.

the Supreme Court lacks any institutional means to implement its decisions.