U.S. senator in the context of "Barack Obama"

Harrison Hagan "Jack" Schmitt (born July 3, 1935) is an American geologist, former NASA astronaut, university professor, and former U.S. senator from New Mexico. He is the most recent living person—and only person without a background in military aviation—to have walked on the Moon.

In December 1972, as a crewmember of Apollo 17, Schmitt became the first member of NASA's first scientist-astronaut group to fly in space. As Apollo 17 was the last of the Apollo missions, he also became the twelfth and second-youngest person to set foot on the Moon and the second-to-last person to step off of the Moon (he boarded the Lunar Module shortly before commander Eugene Cernan). Schmitt also remains the only professional scientist to have flown beyond low Earth orbit and to have visited the Moon. Before training for Apollo 17, he was influential in the geology field for supporting the Apollo program and had helped train Apollo astronauts chosen to visit the lunar surface.

Albert Arnold Gore Jr. (born March 31, 1948) is an American politician, businessman, and environmentalist who served as the 45th vice president of the United States from 1993 to 2001 under President Bill Clinton. A member of the Democratic Party, he previously represented Tennessee in both houses of the U.S. Congress, first as a member of the U.S. House of Representatives from 1977 to 1985, and then as a U.S. senator from 1985 to 1993. Gore was the Democratic nominee for president of the United States in 2000; he lost to George W. Bush despite winning the popular vote.

The son of politician Albert Gore Sr., Gore was raised in Tennessee and Washington, D.C., where he was born. After graduating from Harvard University and serving in the U.S. Army, he quit law school to run as a representative for Tennessee's 4th congressional district in 1976. Gore was re-elected three times before running for U.S. Senate in 1984, winning re-election in 1990. He was considered a moderate and an "Atari Democrat". Gore served as vice president during the Clinton administration from 1993 to 2001, defeating then-incumbents George H. W. Bush and Dan Quayle in 1992, and Bob Dole and Jack Kemp in 1996, and was the first Democrat to serve two full terms as vice president since John Nance Garner. As of 2025, Gore's 1990 re-election remains the last time Democrats won a Senate election in Tennessee.

Hillary Diane Rodham Clinton (née Rodham; born October 26, 1947) is an American politician, lawyer, and diplomat. She was the 67th United States secretary of state in the administration of Barack Obama from 2009 to 2013, a U.S. senator representing New York from 2001 to 2009, and the first lady of the United States from 1993 to 2001 as the wife of Bill Clinton. A member of the Democratic Party, she was the party's nominee in the 2016 presidential election, becoming the first woman to win a presidential nomination by a major U.S. political party and the only woman to win the popular vote for U.S. president. However, she lost the electoral college to Republican Party nominee Donald Trump. She is the only first lady of the United States to have run for elected office.

Born in Chicago, Rodham graduated from Wellesley College in 1969 and from Yale Law School in 1973. After serving as a congressional legal counsel, she moved to Arkansas and, in 1975, married Bill Clinton. In 1977, Clinton co-founded Arkansas Advocates for Children and Families, and in 1979 she became the first woman partner at Little Rock's Rose Law Firm. Clinton was the first lady of Arkansas from 1979 to 1981 and again from 1983 to 1992. As the first lady of the U.S., Clinton advocated for healthcare reform. In 1994, her health care plan failed to gain approval from Congress. In 1997 and 1999, Clinton played a leading role in promoting the creation of the State Children's Health Insurance Program, the Adoption and Safe Families Act, and the Foster Care Independence Act. In 1998, Clinton's marital relationship came under public scrutiny during the Clinton–Lewinsky scandal, which led her to publicly reaffirm her commitment to the marriage.

John Foster Dulles (February 25, 1888 – May 24, 1959) was an American politician, lawyer, and diplomat who served as United States secretary of state under President Dwight D. Eisenhower from 1953 until his resignation in 1959. A member of the Republican Party, he was briefly a U.S. senator from New York in 1949. Dulles was a significant figure in the early Cold War era who pushed for an aggressive rollback campaign against communist regimes and their allies throughout the world.

Born in Washington, D.C., Dulles joined the leading New York law firm of Sullivan & Cromwell after graduating from George Washington University Law School. His grandfather, John W. Foster, and his uncle, Robert Lansing, both served as U.S. secretary of state, while his brother, Allen Dulles, served as the director of central intelligence from 1953 to 1961. Dulles served on the War Trade Board during World War I and he was a U.S. legal counsel at the 1919 Paris Peace Conference. He became a member of the League of Free Nations Association, which supported American membership in the League of Nations. Dulles also helped design the Dawes Plan, which sought to stabilize Europe by reducing German war reparations. During World War II, Dulles was deeply involved in post-war planning with the Federal Council of Churches Commission on a Just and Durable Peace.

Presidential elections were held in the United States on November 5, 2024. The Republican Party's ticket—Donald Trump, who served as the 45th president of the United States from 2017 to 2021, and JD Vance, a U.S. senator from Ohio—defeated the Democratic Party's ticket—Kamala Harris, the incumbent U.S. vice president, and Tim Walz, the incumbent governor of Minnesota.

The incumbent president, Joe Biden of the Democratic Party, initially ran for re-election as its presumptive nominee, facing little opposition and easily defeating Dean Phillips, a U.S. representative, during the Democratic primaries; however, what was broadly considered a poor debate performance in June 2024 intensified concerns about his age and health, and led to calls within his party for him to leave the race. After initially declining to do so, Biden withdrew on July 21, 2024, becoming the first eligible incumbent president to withdraw since Lyndon B. Johnson in 1968. Biden endorsed Harris, who was voted the party's nominee on August 5 and became the first nominee who did not participate in the primaries since Vice President Hubert Humphrey in 1968. Harris selected Walz as her running mate.

Henry Martin "Scoop" Jackson (May 31, 1912 – September 1, 1983) was an American lawyer and politician who served as a U.S. representative (1941–1953) and U.S. senator (1953–1983) from the state of Washington. A Cold War liberal and anti-Communist member of the Democratic Party, Jackson supported higher military spending and a hard line against the Soviet Union, while also supporting social welfare programs, civil rights, and labor unions.

Born in Everett, Washington, to Norwegian immigrants, Jackson practiced law in Everett, after graduating from the University of Washington School of Law. He won election to Congress in 1940, and joined the Senate in 1953 after defeating incumbent Republican Party senator Harry P. Cain. Jackson supported the civil rights movement of the 1960s, and authored the National Environmental Policy Act, which helped establish the principle of publicly analyzing environmental impacts. He co-sponsored the Jackson–Vanik amendment, which denied normal trade relations to non-capitalist countries with restrictive emigration policies. Jackson served as chairman of the United States Senate Committee on Energy and Natural Resources from 1963 to 1981. He was twice an unsuccessful candidate for the Democratic Party nomination, in both the 1972 and 1976 presidential elections. While still serving in the Senate, Jackson died in 1983.

On March 31, 1968, then-incumbent U.S. president Lyndon B. Johnson made a surprise announcement during a televised address to the nation that began around 9 p.m., declaring that he would not seek re-election for another term and was withdrawing from the 1968 United States presidential election. Johnson stated, "I shall not seek, and I will not accept, the nomination of my party for another term as your president."

At first, Johnson's only significant challenger in the 1968 Democratic Party presidential primaries was Eugene McCarthy, an anti-war U.S. senator from Minnesota. Johnson's announcement to drop out of the race came after McCarthy nearly won the New Hampshire primary and Senator Robert F. Kennedy, another critic of the war and the brother of the late president John F. Kennedy, entered the race. Johnson's decision and the assassination of Kennedy opened the door for Vice President Hubert Humphrey to become the Democratic Party's nominee. The 1968 Democratic National Convention, held in Chicago, was marked by significant protests and clashes between demonstrators and police, reflecting the deep divisions within the nation.

Robert Francis Kennedy (November 20, 1925 – June 6, 1968), also known by his initials RFK, was an American politician and lawyer who served as a U.S. senator from New York from 1965 until his assassination in 1968. A member of the Democratic Party, Kennedy previously served as the 64th United States attorney general from 1961 to 1964. Like his brothers John F. Kennedy and Ted Kennedy, he was a prominent member of the Democratic Party and is considered an icon of modern American liberalism.

Born into the prominent Kennedy family in Brookline, Massachusetts, Kennedy attended Harvard University, and later received his law degree from the University of Virginia. He began his career as a correspondent for The Boston Post and as a lawyer at the Justice Department, but later resigned to manage his brother John's successful campaign for the U.S. Senate in 1952. The following year, Kennedy worked as an assistant counsel to the Senate committee chaired by Senator Joseph McCarthy. He gained national attention as the chief counsel of the Senate Labor Rackets Committee from 1957 to 1959, where he publicly challenged Teamsters president Jimmy Hoffa over the union's corrupt practices. Kennedy resigned from the committee to conduct his brother's successful campaign in the 1960 presidential election. He was appointed United States attorney general at the age of 35, one of the youngest cabinet members in American history. Kennedy served as John's closest advisor until the latter's assassination in 1963.