Cortes was able to defeat the Aztecs because of his warfare and the skills that they were able to improve back when they defeated the Moores
Mississippi River is the answer
Answer:
The U.S. Supreme Court ruled that Nixon had to release the Oval Office tapes to government investigators. ... The House Judiciary Committee then approved articles of impeachment against Nixon for obstruction of justice, abuse of power, and contempt of Congress.
To my knowledge if he had a reason to resign at that time, he knew he was guilt and he would get what was coming to him...