Final answer:
Kenneth Starr was the lead investigator in the Bill Clinton scandal, which started with the Whitewater investigation and expanded to include the Monica Lewinsky scandal, leading to the President's impeachment.
Step-by-step explanation:
The lead investigator in the Bill Clinton scandal was Kenneth Starr. Starr, a former federal appeals court judge, was appointed in August 1994 to investigate the Whitewater Development Corporation and the real estate investments of Bill Clinton and his First Lady. His investigation expanded into the Paula Jones allegations of sexual harassment and later into the Monica Lewinsky scandal.
-- Starr meticulously pursued these cases, uncovering details that eventually led to the president admitting to inappropriate relations with Lewinsky, although he denied lying under oath. The Starr Report to the House of Representatives played a crucial role in the impeachment of President Clinton for perjury and obstruction of justice, though he was acquitted by the Senate.