Final answer:
Investigative reporting involves reporters conducting original research to expose wrongdoing or hidden truths. Examples include Watergate, Standard Oil's Monopoly, and Vietnam War coverage. However, 2020 Presidential Campaign Results are not considered investigative reporting.
Step-by-step explanation:
Investigative reporting refers to the type of journalism that involves reporters conducting original research over a period of time to uncover new and significant information. It aims to expose wrongdoing, corruption, or hidden truths. While Watergate, Standard Oil's Monopoly, and Vietnam War coverage are all examples of investigative reporting, 2020 Presidential Campaign Results are not. Campaign results are typically reported based on official data and public records, rather than in-depth investigative research.