Diplomatic career
Temple became active in the California Republican Party. In 1967, she ran unsuccessfully in a special election in California's 11th congressional district after eight-term Republican J. Arthur Younger died of leukemia. She ran in the open primary as a conservative Republican and came in second with 34,521 votes (22.44%), behind Republican law school professor Pete McCloskey, who placed first in the primary with 52,882 votes (34.37%) and advanced to the general election with Democrat Roy A. Archibald, who finished fourth with 15,069 votes (9.79%), but advanced as the highest-placed Democratic candidate. In the general election, McCloskey was elected with 63,850 votes (57.2%) to Archibald's 43,759 votes (39.2%). Temple received 3,938 votes (3.53%) as an independent write-in.
Temple was extensively involved with the Commonwealth Club of California, a public-affairs forum headquartered in San Francisco. She spoke at many meetings throughout the years, and was president for a period in 1984.
Temple got her start in foreign service after her failed run for Congress in 1967, when Henry Kissinger overheard her talking about South West Africa at a party. He was surprised that she knew anything about it. She was appointed as a delegate to the 24th United Nations General Assembly (September – December 1969) by President Richard M. Nixon and United States Ambassador to Ghana (December 6, 1974 – July 13, 1976) by President Gerald R. Ford. She was appointed first female Chief of Protocol of the United States (July 1, 1976 – January 21, 1977).
In 1976, Temple was considered a potential running mate to Gerald Ford in that year's presidential election. While staying in Kansas City for the Republican National Convention, Temple and her husband were given a room with a White House telephone in it. Temple recalled that she speculated to her husband that the phone had been installed as Ford was about to ask her to be his running mate at the convention; however, the phone was disconnected. Bob Dole was instead chosen as the Vice Presidential nominee.
Temple had hoped after Ronald Reagan's victory in the 1980 presidential election that she would be given a cabinet position or another ambassadorship. Reagan did send Temple as his representative to Paris as part of American inaugural celebrations abroad; however, she was not given any new diplomatic posting during the Reagan administration. Writer Anne Edwards suggested that this was because Temple had supported Reagan's rival, George H. W. Bush, in the 1980 Republican primaries. When rumors circulated that Reagan was planning to reappoint Temple as chief of protocol after Lenore Annenberg's resignation, Temple remarked that she didn't "believe in looking back". While the role was not a posting, Temple was appointed Foreign Affairs Officer within the Reagan State Department, responsible for training new diplomats. In 1987, George Shultz appointed her as an Honorary Foreign Service Officer, the first in the State Department's history.
She served as the United States Ambassador to Czechoslovakia (August 23, 1989 – July 12, 1992), having been appointed by President George H. W. Bush, and was the first and only woman in this job. Temple bore witness to two crucial moments in the history of Communist Czechoslovakia. She was in Prague in August 1968, as a representative of the International Federation of Multiple Sclerosis Societies, and was going to meet with Czechoslovak party leader Alexander Dubček on the very day that Soviet-backed forces invaded the country. Dubček fell out of favor with the Soviets after a series of reforms, known as the Prague Spring. Temple, who was stranded at a hotel as the tanks rolled in, sought refuge on the roof of the hotel. She later reported that it was from there she saw an unarmed woman on the street gunned down by Soviet forces, the sight of which stayed with her for the rest of her life.
Later, after she became ambassador to Czechoslovakia, she was present during the Velvet Revolution, which brought about the end of communism in Czechoslovakia. Temple openly sympathized with anti-communist dissidents, and assisted their efforts. She was ambassador when the United States established formal diplomatic relations with the newly elected government led by Václav Havel. She took the unusual step of personally accompanying Havel on his first official visit to Washington, traveling on the same plane.