Which constitutional principle is contradicted by Nixon's statement regarding presidential actions?

The principle of the rule of law emphasizes that everyone, including government officials, is subject to the law. It means that no one is above the law, and it protects individuals from arbitrary governance. When Nixon made statements suggesting that the president has the power to act outside of established laws and the judicial process, he contradicted this principle by implying that presidential actions could be exempt from legal scrutiny.

In contrast, the other principles, such as federalism, checks and balances, and separation of powers, focus on the division and balance of governmental authority and responsibilities rather than the overarching authority of the law itself. Nixon's assertion directly undermines the rule of law by suggesting that his position as president grants him immunity from the legal standards that govern all citizens, which solidifies why this principle is particularly relevant in assessing his statements.