Question: The founding chairman of the Second Amendment Caucus is a representative of what state?

Context paragraphs:
Don Kates: Don Bernard Kates Jr., (January 26, 1941 – November 1, 2016) was an American lawyer and research fellow with The Independent Institute in Oakland, California who focused on promoting gun rights.  His scholarship and litigation played important parts in the modern renaissance of the Second Amendment.  Additionally, Kates played a major role in bringing together scholars and opinion leaders.  Along with Stephen Halbrook, Kates deserved the primary credit for making the Second Amendment scholarship an important topic of modern scholarly interest.  His books include "Armed: New Perspectives On Gun Control", "Restricting Handguns: The Liberal Skeptics Speak Out", "Firearms and Violence: Issues of Public Policy", and "The Great American Gun Debate: Essays on Firearms and Violence" (with Gary Kleck).  As a civil liberties lawyer he has been retained by the National Rifle Association to represent gun owners attacking the constitutionality of certain firearms laws.  The "Washington Post" described Kates as the "Johnnie Cochran" of the pro-gun lobby, noting his polemical attacks on public-health research on firearms injuries and writing that Kates "has muddied the waters of truth so thoroughly that wading into them is a daunting task."  Kates also wrote extensively on criminological issues related to firearms.  Among his most influential policy articles is “Guns and Public Health: Epidemic of Violence or Pandemic of Propaganda?”  which appeared in a symposium issue of the "Tennessee Law Review" in 1994.  His 1983 article in the "Michigan Law Review" was the first time that a top-10 law journal published a detailed historical analysis of the original meaning of the Second Amendment.

Nunn v. Georgia: "Nunn v. State", 1 Ga. (1 Kel.)  243 (1846) is a Georgia Supreme Court ruling that a state law ban on handguns was an unconstitutional violation of the Second Amendment.  This was the first gun control measure to be overturned on Second Amendment grounds.

Ordinance XX: Ordinance XX (Urdu: آرڈیننس 20) is a legal ordinance of the Government of Pakistan that was promulgated under the regime of General Muhammad Zia-ul-Haq on 26 April 1984 and is meant to prohibit the practice of Islam and the usage of Islamic terms and titles for the Ahmadiyya Muslim Community.  The ordinance bars Ahmadi Muslims, who are deemed Non-Muslims under the Pakistani constitution, from publicly practising the Islamic faith and also disallows them from using any Islamic texts for praying purposes.  It is in addition to – but separate from – the 1974 Second Amendment to the Constitution of Pakistan.  While the Second Amendment declared that Ahmadis are non-Muslims, the Ordinance prohibits Ahmadis from identifying themselves as Muslims.

Second Amendment of the Constitution of Ireland: The Second Amendment of the Constitution of Ireland was an omnibus amendment to a variety of articles aimed at implementing a list of many different changes.  It was effected by the Second Amendment of the Constitution Act, 1941 which was signed into law on 30 May 1941.

Thomas Massie: Thomas Harold Massie (born January 13, 1971) is an American engineer and politician who has been the United States Representative for Kentucky's 4th congressional district since 2012.

In Search of the Second Amendment: In Search of the Second Amendment is a documentary film on the Second Amendment of the United States Constitution.  It was produced and directed by American author and attorney David T. Hardy.  He argues the individual rights model of the Second Amendment.  Hardy also discusses the Fourteenth Amendment.

Second Amendment Caucus: The Second Amendment Caucus, also known as the House Second Amendment Caucus, is a congressional caucus consisting of conservative and libertarian Republican members of the United States House of Representatives who support Second Amendment rights.  It was formed in 2016 to "promote a pro-gun agenda" according to founding chairman Thomas Massie.

District of Columbia v. Heller: District of Columbia v. Heller, 554 U.S. 570 (2008) , is a landmark case in which the Supreme Court of the United States held, in a 5–4 decision, that the Second Amendment protects an individual's right to possess a firearm unconnected with service in a militia for traditionally lawful purposes, such as self-defense within the home, and that Washington, D.C.'s handgun ban and requirement that lawfully-owned rifles and shotguns be kept "unloaded and disassembled or bound by a trigger lock" violated this guarantee.  Due to Washington, D.C. 's special status as a federal district, the decision did not address the question of whether the Second Amendment's protections are incorporated by the Due Process Clause of the Fourteenth Amendment against the states, which was addressed two years later by "McDonald v. City of Chicago" (2010) in which it was found that they are.  It was the first Supreme Court case to decide whether the Second Amendment protects an individual right to keep and bear arms for self-defense.

Stephen Halbrook: Stephen P. Halbrook is a Senior Fellow at the Independent Institute and an author and lawyer known for his litigation on behalf of the National Rifle Association.  He has written extensively about the original meanings of the Second Amendment and the Fourteenth Amendment (the latter as applied to Second Amendment rights).  He has argued and won three cases before the US Supreme Court: "Printz v. United States", "United States v. Thompson-Center Arms Company", and "Castillo v. United States".  He has also written briefs in many other cases, including the Supreme Court cases "Small v. United States" (pertaining to the Gun Control Act of 1968) and "McDonald v. Chicago".  In "District of Columbia v. Heller", he wrote a brief on behalf of the majority of both houses of Congress.  More broadly, his decades of research on the Second Amendment contributed to the intellectual foundation of the "Heller" decision.  He has written many books and articles on the topic of gun control, some of which have been cited in Supreme Court opinions ("Heller", "McDonald", "Printz v. United States").  He has testified before congress on multiple occasions.  Halbrook’s most important scholarly contribution, however, was the book "That Every Man Be Armed", originally published in 1986.  The book was the most thorough analysis of the legal history and original intent of the Second Amendment.

David E. Finley, Jr.: David Edward Finley, Jr. (September 1, 1890 – February 1, 1977) was an American cultural leader during the middle third of the 20th century.  He was the first director of the National Gallery of Art, the founding chairman of the National Trust for Historic Preservation, chairman of the U.S. Commission of Fine Arts, a prime mover in the founding of the National Portrait Gallery, and founding chairman of the White House Historical Association.  During the Second World War, Finley led the Roberts Commission, which led the rescue of much of the threatened artworks of Europe.

Supporting paragraphs: Second Amendment Caucus Thomas Massie
Answer: Kentucky