This is the earliest round of Senate elections in which a first-elected member is still alive (Bob Packwood, R-OR).

However, in 1948 Alabama did not support the Democratic ticket for the first time in nearly 100 years, voting for Strom Thurmond, who ran a third-party campaign.

Democrats lost ground due to the unpopularity of the Civil Rights Act among white voters, who at the time comprised nearly the entire electorate.

Goldwater voted against the Civil Rights Act, which boosted his popularity in Southern states.

In 1962, J. Lister Hill ran for re-election to this seat to a fifth term but faced an unusually close race against Republican James D. Martin, who came within 1% of unseating the incumbent.

In 1968, Republicans looked to build upon their momentum but faced a challenge when Lieutenant Governor James B. Allen, a staunch conservative, was nominated by the Democratic Party.

Allen defeated Republican Perry Hooper by a wide margin in the general election and faced little opposition in 1978.

In 1968, he was challenged by former Speaker of the Alaska House of Representatives, Mike Gravel, who ran on a campaign of youth.

Gravel faced former Anchorage Mayor Republican Elmer E. Rasmuson in the general election, while Gruening ran a write-in campaign.

Two months after the election, on December 11, 1968, the other Alaskan senator, Democrat Bob Bartlett, died.

Elson was defeated by a wide margin, however, by former U.S. senator and Republican presidential nominee Barry Goldwater.

Elson had previously challenged U.S. senator Paul Fannin in 1964, when Goldwater vacated his seat to run for President against Lyndon B. Johnson.

In the wake of Civil Rights legislation, which many southern whites opposed, Fulbright was re-elected in 1968 but by the smallest margin of his career.

Kuchel had been re-elected by a wide margin in 1962, winning every county in the state, and was the Minority Whip for the Republican Party.

However, in 1968 he faced a primary challenge from California Superintendent of Public Instruction Max Rafferty, who ran to the right of moderate Kuchel.

In 1970, he ran for re-election and faced Republican State Representative William Ruckelshaus in the general election.

In 1974, he won a narrow majority of the vote over Republican Richard Lugar though he did increase his margin of victory.

Republican Bob Dole defeated Democrat William Robinson with 60% of the vote and won all but one county in the state.

Still, Republicans found success with the elections to U.S. Senate of Thruston Ballard Morton and John Sherman Cooper.

He won the Democratic primary and faced Republican Representative Charles Mathias in the general election.

Mahoney, who ran against the Civil Rights movement, had previously been the Democratic nominee for governor in 1966 losing to Spiro Agnew.

Hyman A. Pressman ran an independent campaign which allowed Republican Agnew to carry the heavily Democratic state with 49.5% of the vote.

[1][15] Only Young filed as a Republican, and the endorsed Democratic candidate was Herschel Lashkowitz of Fargo, North Dakota, who was serving as the mayor of the city since 1954.

Congressman from Oregon's 4th congressional district (1963–1967), and Phil McAlmond, millionaire and former aide to opponent Robert B. Duncan.

Hollings faced no opposition from South Carolina Democrats, and avoided a primary election.

Marshall Parker, the state senator from Oconee County in the Upstate, was persuaded by South Carolina Republicans to enter the race, and he did not face a primary challenge.

However, the Republicans did not provide Parker with the financial resources to compete, and he subsequently lost by a bigger margin to Hollings than two years prior.

Hoff ran a write-in campaign in the Democratic primary for this seat but lost to Republican Aiken by a wide margin.