The first modern Farmer–Labor Party in the United States emerged in Minnesota in 1918. Economic dislocation caused by American entry into World War I put agricultural prices and workers' wages into imbalance with rapidly escalating retail prices during the war years, and farmers and workers sought to make common cause in the political sphere to redress their grievances.
The 1972 United States Senate elections were held on November 7, with the 33 seats of Class 2 contested in regular elections. They coincided with the landslide re-election of Republican President Richard Nixon. Despite Nixon's landslide victory, Democrats increased their majority by two seats. The Democrats picked up open seats in Kentucky and South Dakota, and defeated four incumbent senators: Gordon Allott of Colorado, J. Caleb Boggs of Delaware, Jack Miller of Iowa, and Margaret Chase Smith of Maine. The Republicans picked up open seats in New Mexico, North Carolina, and Oklahoma, and defeated one incumbent, William B. Spong Jr. of Virginia.
The 1966 United States Senate elections were elections on November 8, 1966 for the United States Senate which occurred midway through the second term of President Lyndon B. Johnson. The 33 seats of Class 2 were contested in regular elections. Special elections were also held to fill vacancies. With divisions in the Democratic base over the Vietnam War, and with the traditional mid-term advantage of the party not holding the presidency, the Republicans took three Democratic seats. Despite Republican gains, the balance remained overwhelmingly in favor of the Democrats, who retained a 64–36 majority.
The 1958 United States Senate elections were elections for the United States Senate which occurred in the middle of President Dwight D. Eisenhower's second term. Thirty-two seats of Class 1 were contested in regular elections, the new state of Alaska held its first Senate elections for its Class 2 and 3 seats, and two special elections were held to fill vacancies.
The 1938 United States Senate elections occurred in the middle of Franklin D. Roosevelt's second term. The 32 seats of Class 3 were contested in regular elections, and special elections were held to fill vacancies. The Republicans gained eight seats from the Democrats, though this occurred after multiple Democratic gains since the 1932 election, leading to the Democrats retaining a commanding lead over the Republicans with more than two-thirds of the legislative chamber.
The 1936 United States Senate elections coincided with the reelection of President Franklin D. Roosevelt. The 32 seats of Class 2 were contested in regular elections, and special elections were held to fill vacancies. The Great Depression continued and voters backed progressive candidates favoring Roosevelt's New Deal in races across the country. The Democrats gained 5 net seats during the election, and in combination with Democratic and Farmer–Labor interim appointments and the defection of George W. Norris from the Republican Party to become independent, the Republicans were reduced to 16 seats. The Democrats' 75 seats and their 59-seat majority remain their largest in history.
Frank Leslie Smith was an Illinois politician.
The 1912–13 United States Senate elections were held on various dates in various states. They were the last U.S. Senate elections before the ratification of the Seventeenth Amendment in 1913, establishing direct elections for all Senate seats. Senators had been primarily chosen by state legislatures. Senators were elected over a wide range of time throughout 1912 and 1913, and a seat may have been filled months late or remained vacant due to legislative deadlock. Some states elected their senators directly even before passage of Seventeenth Amendment. Oregon pioneered direct election and experimented with different measures over several years until it succeeded in 1907. Soon after, Nebraska followed suit and laid the foundation for other states to adopt measures reflecting the people's will. By 1912, as many as 29 states elected senators either as nominees of their party's primary or in conjunction with a general election.
Parley Parker Christensen was an American attorney and politician who was a Utah state representative, a Los Angeles City Council member, and the Farmer–Labor Party's presidential nominee during the 1920 presidential election. He was a member of several third parties and chairman of the Illinois Progressive party.
The 1932 United States Senate election in Iowa took place on November 8, 1932. Incumbent Republican Senator Smith Brookhart, a controversial progressive figure within the conservative Iowa Republican Party, was defeated in the June Republican primary by Henry A. Field. Field was in turn defeated in the general election by Democrat Louis Murphy. Brookhart also entered the general election as the candidate of the Progressive Party but finished a distant third.
The 1924 United States Senate election in Iowa took place on November 4, 1924. Incumbent Republican Senator Smith W. Brookhart ran for re-election to a full term in office against Democrat Daniel F. Steck.
The 1920 United States Senate election in Illinois took place on November 2, 1920.
Two United States Senate elections were held in Illinois on March 26, 1913. The two elections were interconnected through a compromise made to elect a Democrat in the regular election and a Republican in the special election.
The 1914 United States Senate election in Illinois took place on November 3, 1914.
The 1918 United States Senate election in Illinois took place on November 5, 1918.
The 1924 United States Senate election in Illinois took place on November 4, 1924.
The United States Senate election of 1928 in New Jersey was held on November 6, 1928. Incumbent Democratic Senator Edward I. Edwards ran for re-election to a second term in office, but was defeated by Hamilton Fish Kean in a landslide. This was the third of four straight elections to this seat in which the incumbents were defeated.
The 1930 United States Senate election in Illinois took place on November 4, 1930.
The 1928 United States Senate special election in Illinois took place on November 6, 1928. The election was held due to the U.S. Senate's refusal to seat 1926 election winner, Republican Frank L. Smith, due to allegations of election fraud. The election saw the election of Republican Otis F. Glenn.
The 1916 Illinois gubernatorial election was held on November 7, 1916. Incumbent Democratic Governor Edward Fitzsimmons Dunne was defeated by Republican nominee Frank Orren Lowden.
