According to the quotation, Stevens believes that President Johnson should be removed from office because he did not consistently carry out his duty to obey the Constitution and make sure the laws are followed. Stevens states that the President's main responsibility is to follow the orders of the sovereign and enforce national laws. President Johnson's attempt to avoid his duty and violate his official promise was a direct violation of his presidential duties. As a result, Stevens believes Johnson should be removed from office for not carrying out his responsibilities to uphold the Constitution.
Rewrite this to sound simpler. Intended for 8th grade.