Bill Clinton was not impeached, but he was almost impeached. In 1997 or 1998 he had an affair with an intern in the White House. Her name was Monica Lewinsky. She was very young. She was only 22 years old at the time of the affair. He was much older as the president. First, four women had already accused Bill Clinton of sexual misconduct.
Therefore, this did not look good for his reputation. When this affair came to light and it was with an intern from the White house, many people felt that this was considered to be an abuse of power. Even though they tried to impeach Bill Clinton, he was not impeached and he continued to be president of the US for the next few years.