Question: Nguyễn Văn Trỗi gained notoriety after being captured by South Vietnamese forces while trying to assassinate United States Secretary of Defense Robert McNamara and future ambassador Henry Cabot Lodge Jr, a Republican United States Senator from what state?

Context paragraphs:
Trần Thị Lý Bridge: The Nguyễn Văn Trỗi–Trần Thị Lý Bridge (Vietnamese: "Cầu Nguyễn Văn Trỗi–Trần Thị Lý" ) is a bridge spanning the Hàn River in the city of Đà Nẵng, Vietnam.  The new bridge replaces two older bridges named after Nguyễn Văn Trỗi and Trần Thị Lý.

Nguyễn Văn Kiệt: Nguyễn Văn Kiệt was a Petty Officer Third Class in the Republic of Vietnam Navy, one of only two South Vietnamese and the only South Vietnamese Navy member, to be awarded the Navy Cross for actions during the Vietnam War.  (The other recipient was ARVN PFC Trần Văn Bảy.)

Ngo Dinh Diem: Ngô Đình Diệm (] ; 3 January 1901 – 2 November 1963) was a South Vietnamese politician.  A former mandarin of the Nguyễn dynasty, he was named Prime Minister of the State of Vietnam by Head of State Bảo Đại in 1954.  In October 1955, after winning a heavily rigged referendum, he deposed Bảo Đại and established the first Republic of Vietnam (RVN), with himself as president.  He was a leader of the Catholic element and was opposed by Buddhists.  In November 1963, after constant Buddhist protests and non-violent resistance, Diệm was assassinated during a coup d'état, along with his brother, Ngô Đình Nhu, by Nguyễn Văn Nhung, the aide of the leader of the Army of Republic of Vietnam (ARVN), General Dương Văn Minh.

Nguyễn Văn Trỗi: Nguyễn Văn Trỗi (1 February 1940 – 15 October 1964) was a Việt Minh (National Liberation Front) bomber.  He gained notoriety after being captured by South Vietnamese forces while trying to assassinate United States Secretary of Defense Robert McNamara and future ambassador Henry Cabot Lodge Jr. who were visiting South Vietnam in May 1963.

Execution of Nguyễn Văn Lém: Nguyễn Văn Lém (] ; 1931 or 1932 – 1 February 1968), referred to as Captain Bảy Lốp or Ew Tu, was a member of the National Liberation Front, responsible for killing the wife and six children of a South Vietnamese military officer Lieutenant Colonel Nguyễn Tuan.  Lém was later captured and summarily executed in Saigon by General Nguyễn Ngọc Loan during the Tet Offensive.  The execution was captured on film by photojournalist Eddie Adams.  The execution was explained at the time as being the consequence of Lém’s admitted guerrilla activity and war crimes, and otherwise due to a general “wartime mentality”.

David Truong: David Truong (born Truong Dinh Hung) (September 2, 1945 - June 26, 2014) was a South Vietnamese national who lived in the United States and partook in the anti-Vietnam War peace movement.  Truong was the son of South Vietnamese politician Trương Đình Dzu, a candidate for the presidency in the 1967 elections against Nguyễn Văn Thiệu.  Dzu advocated negotiating with the National Liberation Front for South Vietnam to end the war.  Truong and co-conspirator Ronald Humphrey were arrested for passing diplomatic cables and classified information to Vietnam.  They were convicted of espionage in 1978.

Henry Cabot Lodge Jr.: Henry Cabot Lodge Jr. (July 5, 1902 – February 27, 1985) sometimes referred to as Henry Cabot Lodge II, was a Republican United States Senator from Massachusetts and a United States ambassador.  He was the Republican nominee for Vice President in the 1960 presidential election.

Nguyễn Văn Cử (pilot): Nguyễn Văn Cử (born c. 1934, Vietnam) was a lieutenant in the South Vietnamese air force, best known for being one of two mutinous pilots involved in the 1962 South Vietnamese Presidential Palace bombing on 27 February 1962, which aimed to assassinate South Vietnam's President Ngô Đình Diệm and his immediate family, who were his political advisers.

Henry Cabot Lodge House: The Henry Cabot Lodge House is a National Historic Landmark at 5 Cliff Street in Nahant, Massachusetts.  It was designated as the only known residential building associated with United States Senator Henry Cabot Lodge (1850–1924).  Lodge was a leading Republican politician who was a longtime associate of President Theodore Roosevelt, and an influential figure who led the successful opposition to the ratification of the Treaty of Versailles that ended World War I.

Trần Văn Bảy: Trần Văn Bảy was a Private First Class of the Army of the Republic of Vietnam who was awarded the Navy Cross for actions on February 19, 1967 during the Vietnam War.  Bảy was one of only two South Vietnamese, and the only South Vietnamese Army member, to receive the Navy Cross during the Vietnam War (the other being Nguyễn Văn Kiệt).

Supporting paragraphs: Nguyễn Văn Trỗi Henry Cabot Lodge Jr.
Answer: Massachusetts