David Graham Phillips (1867–1911) — exposed corruption in campaign contributors and Senate
<span>Samuel Hopkins Adams (1871–1958) — exposed false claims about patent medicines </span>
<span>Jacob August Riis (1849–1914) — early pioneer in investigative journalism, exposed slum conditions</span>
Answer:
In 1898, the battleship USS Maine was sent to Havana, Cuba, to protect U.S. interests during a Cuban revolt against Spain.
Explanation: