Hernández Colón affiliated himself with the Popular Democratic Party of Puerto Rico (
Partido Popular Democrático, PPD). He served as Associate Commissioner of Public Service under the governorship of
Roberto Sánchez Vilella. In 1965 he was named Secretary of the Department of Justice.
President of the Senate Hernández Colón was elected to the
Senate of Puerto Rico in the 1968 elections, in which his party retained control of the Senate but lost the governorship and House of Representatives. As President of the Senate, Hernández Colón became the Popular Democratic Party's president and main opposition leader. As a Senator, he proposed a
constitutional amendment to lower the minimum voting age to 18, which passed in 1970. He also spearheaded efforts to persuade Congress to stop bombing practices on the island of
Culebra. On the issue of political status, he opposed Governor Ferré's creation of an Ad Hoc Committee for the Presidential Vote, alleging that it was a misleading effort to enhance the island's current Commonwealth status in accordance with the results of the
1967 status plebiscite. In
1972, he successfully ran for
Governor of Puerto Rico, defeating the incumbent by approximately 95,000 votes, or 7.3%. He remains the last PDP gubernatorial candidate to have achieved victory with over 50% of votes.
First term (1973–1977) ; from left to right: unidentified man, Hernandez,
Reubin Askew (
governor of Florida),
Maurice Ferré (
mayor of Miami),
Claude Pepper (U.S. Congressman), Mildred Pepper During his first term, the island was wracked by recession, induced by the
1973 oil crisis, which hit Puerto Rico particularly hard because of the many businesses that were directly related to petroleum processing in Puerto Rico. After enacting austerity measures and tax increases, the economy recovered by 1976. In 1973, he appointed, alongside President
Richard Nixon, an Ad Hoc Committee for Puerto Rico to enhance Puerto Rico's Commonwealth status pursuant to the people's mandate in the 1967 elections. The Committee rendered a report and proposal for a Compact of Permanent Union Between Puerto Rico and the United States that expanded Puerto Rico's autonomy over local affairs, expanded its right to participate in international matters, created a mechanism to object to the automatic application of federal laws, and allowed for the election of a delegate to the U.S. Senate. President
Gerald Ford, who replaced Nixon, did not react to the report until after the 1976 elections, when he proposed statehood for the island. According to Hernández Colón, his delayed response was due to political pressure by island Republicans, who supported Ford in his primary against
Ronald Reagan. Hernández Colón also signed Law No. 80 of 1976, which required just cause for terminating employment. In 2018, Law 80 became a hotly debated issue when the governor proposed its elimination. Hernández Colón lost the
1976 race for Governor to then
Mayor of
San Juan,
Carlos Romero Barceló, by 3%. He then lost again to Romero Barceló in 1980, in this second matchup by a slim margin of approximately 3,000 votes, or 0.2%.
Second and third terms (1985–1993) Hernández Colón ran again against Romero Barceló in the November 1984 elections and was victorious by about 54,000 votes (48 to 45% respectively). He won re-election in the 1988 election, besting his main rival
Baltasar Corrada del Río by 49 to 46%. As part of his 1984 electoral campaign, Hernández Colón released a musical album with Puerto Rican country music titled
Ahora Es Que Vamos ("Here We Go Now"). In 1991, Hernández Colón signed a law stating that the only official language of Puerto Rico should be Spanish. The immediate effect was that English was no longer the second official language. While many applauded the governor's decision, on the other hand, supporters of the Commonwealth and the parties in favor of the American federal state interpreted this law as a threat to their ideologies. In 1993, his successor
Pedro Rosselló rescinded the law and reinstated English as the official language, alongside Spanish. During this time Puerto Rico experienced an economic boom with GDP growth at 5% during the years 1987–1989 the highest since Operation Bootstrap and the Economic Boom in the United States. Unemployment dropped drastically in his term from an all-time high 25% in 1983 to 12.0% in 1990. He lost popularity with the controversial Pabellón de Sevilla that was an attempt of a representation of Puerto Rico at the
Universal Exposition of Seville in 1992. In January 1992 Hernández announced that he would not seek re-election. On January 11, he resigned as President of the
Popular Democratic Party, a post he had held for 23 years. Senator
Victoria Muñoz Mendoza succeeded him as president of the party and later became a gubernatorial candidate herself. ==Personal life==