In 1952, Republican Dwight Eisenhower squared off against Democrat Adlai Stevenson in the presidential election. Eisenhower, who had been commander of allied forces in Europe during World War II, was enormously popular but not much of a public speaker. So a combination of talents from America’s largest advertising agencies, including the man upon whom the “Mad Men” character Don Draper was roughly based, convinced Eisenhower and his advisers that the best way to reach American voters was the same way they received selling propositions about what soap to use, what car to drive, what cigarette to smoke — by a TV commercial. Eisenhower reluctantly agreed — and political campaigns were changed forever.