Describe circumstances under which the 25th amendment was twice enacted during the nixon administration.

Explanation:

The first time was the enforcement of section I of Amendment 25. Nixon Resigned. Ford (then vice president) became the president.

The second time was for Section II. When Ford became president, Amendment 25 section II allowed him to nominate the person he wished to become Vice president. In that case, Ford nominated Nelson Rockefeller who was then governor of NY state.

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Explanation:

The first use of the 25th Amendment was to replace Vice President Agnew following his resignation. Section 2 of the Amendment explicitly outlines the procedure to follow in the case of a vacancy in the office of the vice president: President Nixon had to appoint a new vice president who would be confirmed by a majority vote in both houses of Congress. The second, more infamous application of the 25th Amendment was to replace President Nixon following his resignation amid the Watergate Scandal. Section 1 of the Amendment states that the vice president assumes the office of the president in the case of resignation, thus Vice President Ford assumed the presidency. President Ford then had to appoint a vice president (Rockefeller) to fill the vacancy left by him.