why did president nixon resign
Congress was going to impeach him. He was about to lose the election. He was involved in an amnesty scandal. President Nixon resigned because he was involved in an amnesty scandal known as the Watergate Scandal. Expert answered|jbgingz|Points 182|. Log in to see link for more information.
The short answer is that if he had not resigned, it is very likely that Nixon would have been impeached by the House of Representatives and then removed from office after a trial by the U.S. Senate. The Watergate scandal (and the associated drip-drip revelations of dirty tricks) had been growing for two years. At the end of July of 1974, the House Judiciary Committee approved several articles of impeachment to go to the floor of the House, demonstrating that the momentum for impeachment was already there.