“That's not enough, madam, we need a majority!”
Supposed response to a woman who called out to him: "Governor, you have the vote of every thinking person!" during one of his presidential campaigns. This quote has appeared with several variations in dozens of books and newspaper articles at least since the 1970s. One of the earlier references is in a book review article by Robert Sherrill in the New York Times, "Titles in the Running for 1972", February 13, 1972. No source closer to Stevenson has been found, in particular none that names a witness nor the date or location of the remark.
Disputed
Help us to complete the source, original and additional information
Adlai Stevenson 131
mid-20th-century Governor of Illinois and Ambassador to the… 1900–1965Related quotes

“As for our majority… one is enough.”
Source: Books, Coningsby (1844), Endymion (1880), Ch. 64.

“We aren’t going to convince the majority, but we need to do business until [Jesus] comes.”
As quoted in My Encounter with Ken Ham's Giant Ark http://www.christianitytoday.com/ct/2016/july-web-only/ken-ham-ark-encounter-visit.html?start=1, Christian Post (July 22, 2016)
How to... use a Library, Never Push When It Says Pull: Small Rules for Little Problems (2005).

“H'aint we got all the fools in town on our side? And ain't that a big enough majority in any town?”
Source: Adventures of Huckleberry Finn (1885), Ch. 26
Source: The Adventures of Huckleberry Finn
Source: H.H. LAUGHLIN: American Scientist. American Progressive. Nazi Collaborator.

“Term limits aren't enough. We need jail.”
The Liberty Manifesto (1993)

Speech at Kensington Town Hall ("Britain Awake") (19 January 1976) http://www.margaretthatcher.org/speeches/displaydocument.asp?docid=102939
Leader of the Opposition

“The world order needs a major overhaul.”
Source: The Age of Fallibility: Consequences of the War on Terror