Collateral. You can borrow money against a house or car, but if you default and don't pay it back you will lose the house or car, or whatever you used as collateral.
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...
