Question

why could the impeachment and resignation of Nixon be considered the end of the post war era in America.

Answer 1

Nixon was abusing his power in office, making his reputation bad. Nixon resigned before he could be impeached.

Step-by-step explanation:

Nixon was trying to cover up the Watergate incident. Nixon was trying to improve relationship with China, Chine and Russia were having issues between each other, with the U.S supporting China, the soviet union might back off.