Final answer:
After appointing Gerald Ford as vice president, President Nixon voluntarily resigned as president.
Step-by-step explanation:
After President Nixon appointed Gerald Ford as vice president, he voluntarily resigned as president.
When Nixon resigned from office, it was the unelected Gerald Ford who became president.
One of Ford's first actions as president was to grant Richard Nixon a full pardon, preventing Nixon from being indicted for any crimes he may have committed in office.