Final answer:
Richard Nixon was the President who was going to be impeached, but received a Presidential Pardon from President Gerald Ford.
Step-by-step explanation:
The President who was going to be impeached, but received a Presidential Pardon, was Richard Nixon. After being implicated in the Watergate scandal, Nixon faced an overwhelming likelihood of impeachment in the House. However, before the House and Senate could exercise their constitutional prerogatives, Nixon resigned and was subsequently pardoned by President Gerald Ford.