This is former President Richard Nixon. During his presidency, he was apart of one of the most famous presidential scandals in American history.
On June 17, 1972, The Watergate Building was the headquarters for the democratic party during the 1972 presidential election. It was robbed by multiple people, all who were caught in the act. They attempting to place wiretaps on most of the phones and steal important documents. Every single one of the thieves were a part of Nixon's re-election campaign, which brought suspicion to President Nixon. What made him even more suspicious is that he attempted to cover everything up by raising money to keep the thieves quiet. He tried to get the FBI to not investigate the crime and he fired any staff that wasn't cooperative. Finally, he tried covering it up by....
...deleting the recordings of multiple tapes of conversations in the Oval Office. Which brought the question "Is the President's right to safeguard certain information, using his "executive privilege" confidentiality power, entirely immune from judicial review?"
Leon Jaworski (the special prosecutor) argued that it was suspicious for the President to have connections to the others who were connected to the Watergate scandal and would refuse to turn in the subpoenaed items. He raged that as soon as the President was named a co-conspirator that, he relinquished his right of executive privilege. He also argued that the constitution in which we currently still use never stated anything about "Executive Privilege"
The United States (represented by Leon Jorworski) all water President Nixon to be impeached and charged with espionage.
Since the vote was unanimous there wasn't a dissenting opinion.
The case between USA vs Nixon didn't affect the constitution because it already had checks and balances, but it got more people to understand checks and balances.
This case is still very relevant to this day because after the trials happened, people began to lose trust in their government.
Even though Nixon was supposed to be impeached, he resigned before they gave the final verdict and Gerald Ford gave Nixon and everyone involved in the Watergate scandal a Presidential Pardon.