Adlai Stevenson I, American lawyer and politician, 23rd Vice President of the United States (born 1835)

Adlai Ewing Stevenson was an American politician and diplomat who served as the 23rd vice president of the United States from 1893 to 1897 under President Grover Cleveland. A member of the Democratic Party, Stevenson served as a U.S. Representative for Illinois in the late 1870s and early 1880s. He was the founder of the Stevenson political family.

The vice president of the United States is the second-highest ranking office in the executive branch of the U.S. federal government, after the president of the United States, and ranks first in the presidential line of succession. The vice president is also an officer in the legislative branch, as the president of the Senate. In this capacity, the vice president is empowered to preside over the United States Senate, but may not vote except to cast a tie-breaking vote. The vice president is indirectly elected at the same time as the president to a four-year term of office by the people of the United States through the Electoral College, but the electoral votes are cast separately for these two offices. Following the passage in 1967 of the Twenty-fifth Amendment to the US Constitution, a vacancy in the office of vice president may be filled by presidential nomination and confirmation by a majority vote in both houses of Congress.