The same year he founded his law office, Fong entered elected political life as a member of the Hawaii Territorial House of Representatives where he became Speaker of the House from 1948 to 1954. During this time, he was one of the foremost leaders in the fight to make Hawaii a state. He was forced into retirement when the Democratic Party of Hawaii successfully ended a Hawaii Republican Party stronghold over the Hawaii Territorial Legislature by voting most Republican incumbents out of office. Fong founded several businesses after leaving the legislature. Upon achieving statehood through the Admission Act of 1959, Hawaii returned Fong to elected office; he became one of its first United States Senators. He served alongside former Governor of Hawaii Oren E. Long, a Democrat and popular territorial leader. Fong voted in favor of the Civil Rights Acts of 1960, 1964, and 1968, as well as the 24th Amendment to the U.S. Constitution, the Voting Rights Act of 1965, and the confirmation of Thurgood Marshall to the U.S. Supreme Court. Fong supported both the Vietnam War and President Nixon during the Watergate scandal. Senator Fong was booed by a hearing audience for defending George Romney, Secretary of Housing and Development, in the wake of a real estate industry scandal. He twice ran favorite son campaigns for the Republican presidential nomination, in 1964 and 1968. In 1964, he became the first Asian-American to receive votes for president at a major party convention, receiving the votes of the Hawaii and Alaska delegations. Fong was the first Hawaii-born individual to run for President of the United States. In 1965, during debate on Immigration and Nationality Act of 1965 Fong answered questions concerning the possible change in US cultural pattern by an influx of Asians:
"Asians represent six-tenths of 1 percent of the population of the United States... concerning Japan, we estimate that there will be a total for the first 5 years of some 5,391... the people from that part of the world will never reach 1 percent of the population...Our cultural pattern will never be changed as far as America is concerned."
Papers
The papers of Hiram Fong were donated to the University of Hawaii at Manoa Library in August 1998 when over 1000 boxes, crates and trunks of documents, photographs, videos, and memorabilia at the senator's home were delivered to the University of Hawaii for inventorying, fumigation and preliminary processing. Along with the papers, Fong also provided generous financial support towards their preservation and processing. The bulk of the papers cover the years that Fong served in Congress, from August 1959 to January 1977. Included in the collection are series of Washington office files, Hawaii office files, Post Office and Civil Service Committee materials, campaign memorabilia, photographs, and political souvenirs. Also in the papers are a few professional and personal materials from his pre-Congressional life such as Harvard Law School notes. Approximately 80 boxes of books accompanied Fong's papers, several dedicated to him for his important work on Senate committees such as the Post Office and Civil Service Committee. A few of the books were kept with the congressional collection but the majority were added to the book collections of the University of Hawaii at Manoa Library. A gift book plate was designed for these incorporating the senator's noted signature. The papers were processed in 2003 by archivist Dee Hazelrigg, and are available to researchers in the Archives & Manuscripts Department by appointment. A Finding Aid, which provides detailed listings of the materials, is available at the web site.
Personal life
Fong married Ellyn Lo in 1938; they had four children. After retiring from the Senate, Fong faced financial and legal difficulties, including several lawsuits with a son over the family's businesses that forced him and his wife to declare bankruptcy in 2003. They managed a botanical garden of that was opened to the public in 1988. Fong was a Congregationalist and was buried in Nuuanu Memorial Park and Mortuary.