Gravel "decided to become a pioneer in a faraway place," and moved to pre-statehood Alaska in August 1956, without funds or a job, looking for a place where someone without social or political connections could be a viable candidate for public office. Alaska's voting age of 19, less than most other states' 21, played a role in his decision, as did its newness and cooler climate. Broke when he arrived, he immediately found work in real estate sales until winter arrived. Gravel then was employed as a brakeman for the Alaska Railroad, working the snow-clearing train on the Anchorage-Fairbanks run. Subsequently, he opened a small real estate brokerage in Anchorage (the Territory of Alaska not requiring a license) and saved enough so as not to have to work the railroad again. Gravel joined the Anchorage Unitarian Universalist Fellowship, and continued a sporadic relationship with the movement throughout his life.  Gravel married Rita Jeannette Martin, who had been Anchorage's "Miss Fur Rendezvous" of 1958, on April 29, 1959. They had two children, Martin Anthony Gravel and Lynne Denise Gravel, born c. 1960 and 1962 respectively.  Meanwhile, he went to Washington, D.C. in 1957 to campaign for Alaskan statehood via the "Tennessee Plan": dressed as Paul Revere, he rode with a petition to the steps of the U.S. Capitol. Seeing Alaska as a wide-open place with no political establishment or entrenched interests, and using the slogan "Gravel, the Roadbed to Prosperity", he ran for the territorial legislature in 1958 but lost. He went on a national speaking tour concerning tax reform in 1959, sponsored by the Jaycees. He ran without avail for the City Council in Anchorage in 1960. During this time, he had become a successful real estate agent; after the 1960 election, he became a property developer in a mobile home park on the outskirts of Anchorage. A partner ran into financial difficulty, however, and the project went into Chapter 11 bankruptcy and Gravel was forced out in 1962.  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.  Gravel actively campaigned for the office of Vice President of the United States during the 1972 presidential election, announcing on June 2, 1972, over a month before the 1972 Democratic National Convention began, that he was interested in running for the nomination should the choice be opened up to convention delegates. Towards this end he began soliciting delegates for their support in advance of the convention. He was not alone in this effort, as former Governor of Massachusetts Endicott Peabody had been running a quixotic campaign for the same post since the prior year. Likely presidential nominee George McGovern was in fact considering the unusual move of naming three or four acceptable vice-presidential candidates and letting the delegates choose.  At the convention's final day on July 14, 1972, presidential nominee McGovern selected and announced Senator Thomas Eagleton of Missouri as his vice-presidential choice. Eagleton was unknown to many delegates and the choice seemed to smack of traditional ticket balancing considerations. Thus, there were delegates willing to look elsewhere. Gravel was nominated by Bettye Fahrenkamp, the Democratic National Committeewoman from Alaska. He then seconded his own nomination, breaking down in tears at his own words and maybe trying to withdraw his nomination. In any case he won 226 delegate votes, coming in third behind Eagleton and Frances "Sissy" Farenthold of Texas, in chaotic balloting that included several other candidates as well.  For his efforts, Gravel attracted some attention: famed writer Norman Mailer would say he "provided considerable excitement" and was "good-looking enough to have played leads in B-films", while Rolling Stone correspondent Hunter S. Thompson said Gravel "probably said a few things that might have been worth hearing, under different circumstances ..." Yet, the whole process had been doubly disastrous for the Democrats. The time consumed with the nominating and seconding and other speeches of all the vice-presidential candidates had lost the attention of the delegates on the floor and pushed McGovern's speech until 3:30 a.m. The haste with which Eagleton had been selected led to surprise when his past mental health treatments were revealed; he withdrew from the ticket soon after the convention, to be replaced by Sargent Shriver.

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