AP-GfK Poll conducted by GfK Roper Public Affairs & Corporate Communications. April 11-15, 2013. N=1,004 adults nationwide. Margin of error ± 3.9.

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"Turning now to the assassination of John F. Kennedy in 1963: Do you think that one man was responsible for the assassination of President Kennedy, or do you think that others were involved in a conspiracy?"

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Gallup Poll. Nov. 10-12, 2003. Nationwide.

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"Turning now to the assassination of John F. Kennedy in 1963: Do you think that one man was responsible for the assassination of President Kennedy, or do you think that others were involved in a conspiracy?" Form A (N=533 adults, MoE ± 5)

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"There have been many theories about who was involved in the assassination. I'd like to know if you think any of the following were involved in the assassination of President John F. Kennedy. Do you think [see below] was/were involved in the assassination, or don't you think so?" Form B (N=471 adults, MoE ± 5)

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ABC News Poll. Nov. 5-9, 2003. N=1,031 adults nationwide. MoE ± 3.

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"As you may know, President John F. Kennedy was assassinated in November 1963, 40 years ago this month. From what you know about it, do you think the important facts about the assassination have been reported or do you think there are still important unanswered questions about the assassination?" Options rotated

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"Do you feel the Kennedy assassination was the work of one man, or was it part of a broader plot?"

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"Do you think Lee Harvey Oswald was the only gunman in the Kennedy assassination, do you think there was another gunman in addition to Oswald there that day, or do you think Oswald was not involved in the assassination at all?"

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"Do you think there was or was not an official cover-up to keep the public from learning the truth about the Kennedy assassination?"

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FOX News/Opinion Dynamics Poll. Oct. 14-15, 2003. N=900 registered voters nationwide. MoE ± 3.

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"This November is the 40th anniversary of the assassination of President John F. Kennedy. Do you feel that the assassination of President John F. Kennedy was the act of one individual or part of a larger conspiracy?"

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"Do you think that we know all the facts about the assassination of President John F. Kennedy or do you think there was a cover-up?"

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"Do you think the government should conduct another investigation of the assassination of President John F. Kennedy?"

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