Answer the question at the end by quoting:

Maurice Robert "Mike" Gravel (; born May 13, 1930) is an American politician who was a Democratic United States Senator from Alaska from 1969 to 1981 and a candidate in the 2008 U.S. presidential election. Born and raised in Springfield, Massachusetts, by French-Canadian immigrant parents, Gravel served in the U.S. Army in West Germany, and he later graduated from the Columbia University School of General Studies. He moved to Alaska in the late 1950s, becoming a real estate developer and entering politics. He served in the Alaska House of Representatives from 1963 to 1966 and also became Speaker of the Alaska House.
In the late 1960s and early 1970s the U.S. Department of Defense was in the process of performing tests for the nuclear warhead for the Spartan anti-ballistic missile. Two tests, the "Milrow" and "Cannikin" tests, were planned, involving the detonation of nuclear bombs under Amchitka Island in Alaska. The Milrow test would be a one megaton calibration exercise for the second, and larger five megaton, Cannikin test, which would measure the effectiveness of the warhead. Gravel opposed the tests in Congress. Before the Milrow test took place in October 1969, he wrote that there were significant risks of earthquakes and other adverse consequences, and called for an independent national commission on nuclear and seismic safety to be created; he then made a personal appeal to President Nixon to stop the test. After Milrow was conducted, there was continued pressure on the part of environmental groups against going forward with the larger Cannikin test, while the Federation of American Scientists claimed that the warhead being tested was already obsolete. In May 1971, Gravel sent a letter to U.S. Atomic Energy Commission hearings held in Anchorage, in which he said the risk of the test was not worth taking. Eventually a group not involving Gravel took the case to the U.S. Supreme Court, which declined to issue an injunction against it, and the Cannikin test took place as scheduled in November 1971. Gravel had failed to stop the tests (notwithstanding his later claims during his 2008 presidential campaign). Nuclear power was considered an environmentally clean alternative for the commercial generation of electricity and was part of a popular national policy for the peaceful use of atomic energy in the 1950s and 1960s. Gravel publicly opposed this policy; besides the dangers of nuclear testing, he was a vocal critic of the Atomic Energy Commission, which oversaw American nuclear efforts, and of the powerful United States Congress Joint Committee on Atomic Energy, which had a stranglehold on nuclear policy and which Gravel tried to circumvent. In 1971, Gravel sponsored a bill to impose a moratorium on nuclear power plant construction and to make power utilities liable for any nuclear accidents; in 1975, he was still proposing similar moratoriums. By 1974, Gravel was allied with Ralph Nader's organization in opposing nuclear power. Six months before U.S. Secretary of State Henry Kissinger's secret mission to the People's Republic of China (P.R.C.) in July 1971, Gravel introduced legislation to recognize and normalize relations with China, including a proposal for unity talks between the P.R.C. and the Republic of China (Taiwan) regarding the Chinese seat on the U.N. Security Council. Gravel reiterated his position in favor of recognition, with four other senators in agreement, during Senate hearings in June 1971.

Did he hold office during this time period?

IN: Norquist grew up in Weston, Massachusetts. He is the son of Carol (nee Lutz) and Warren Elliott Norquist (a vice president of Polaroid Corporation), and is of Swedish ancestry. His brother, David Norquist has served in senior posts in Republican administrations at both the United States Department of Defense and the United States Department of Homeland Security. Norquist became involved with politics at an early age when he volunteered for the 1968 Nixon campaign, assisting with get out the vote efforts.

Prior to the November 2012 election, 238 of 242 House Republicans and 41 out of 47 Senate Republicans had signed ATR's "Taxpayer Protection Pledge", in which the pledger promises to "oppose any and all efforts to increase the marginal income tax rate for individuals and business; and to oppose any net reduction or elimination of deductions and credits, unless matched dollar for dollar by further reducing tax rates." The November 6, 2012 elections resulted in a decline in the number of Taxpayer Protection Pledge signatories in both the upper and lower houses of the 113th Congress: from 41 to 39 in the Senate, and from 238 to "fewer than ... 218" in the House of Representatives. According to journalist Alex Seitz-Wald, losses in the election by Norquist supporters and the "fiscal cliff" have emboldened and made more vocal critics of Norquist. In November 2011, Senate Majority leader Harry Reid (D-NV) blamed Norquist's influence for the Joint Select Committee on Deficit Reduction's lack of progress, claiming that Congressional Republicans "are being led like puppets by Grover Norquist. They're giving speeches that we should compromise on our deficit, but never do they compromise on Grover Norquist. He is their leader." Since Norquist's pledge binds signatories to opposing deficit reduction agreements that include any element of increased tax revenue, some Republican deficit hawks now retired from office have stated that Norquist has become an obstacle to deficit reduction. Former Republican Senator Alan Simpson (R-WY), co-chairman of the National Commission on Fiscal Responsibility and Reform, has been particularly critical, describing Norquist's position as "[n]o taxes, under any situation, even if your country goes to hell."

When was the pledge put in place?

OUT:
2012