The inability of Herbert Hoover to deal with the Great Depression was the main issue surrounding this election,[2][3] with his overwhelming unpopularity causing his Republican Party to lose 101 seats to Roosevelt's Democratic Party and the small Farmer–Labor Party, as the Democrats expanded the majority they had gained through special elections to a commanding level.
This round of elections was seen as a referendum on the once popular Republican business practices, which were eschewed for new, more liberal Democratic ideas. This was the first time since 1894 (and the last time as of 2024) that any party suffered triple-digit losses, and the Democrats posted their largest net seat pick-up in their history. These elections marked the beginning of a period of dominance in the House for the Democrats: with the exception of 1946 and 1952, the party would win every House election until 1994.
This was the first election after the congressional reapportionment based on the 1930 census, which was the first reapportionment since the passage of the Reapportionment Act of 1929 that permanently capped the House membership at 435 seats. Since no reapportionment (and in nearly all states no redistricting) had occurred after the 1920 census, the district boundary changes from the previous election were quite substantial, representing twenty years of population movement from small towns to the more Democratic cities.
Incumbent resigned April 11, 1932, to become Associate Justice of the Supreme Court of Puerto Rico. New Delegate elected April 15, 1932. Independent gain. Winner was not elected to finish the term; see below.
Nine new seats were added in reapportionment, increasing the delegation from 11 to 20 seats. Six of the new seats were won by Democrats, three by Republicans. Three Republican incumbents lost re-election to Democrats. Therefore, Democrats increased by 10 seats and Republicans decreased by 1.
Indiana gained one seat in reapportionment. All of the incumbents were redistricted. The new seat was won by a Democrat and all the other incumbent Democrats won re-election. All three incumbent Republicans lost re-election, bringing the state from 8-3 Democratic to 12-0 Democratic.
The eighth district was eliminated when the state was reapportioned from eight to seven districts. Two incumbent Republicans lost re-election. One incumbent Republican lost renomination and his seat was won by the incumbent Democrat from the district that was merged into his.
Kentucky, reapportioned from 11 districts down to 9, elected all of its representatives on a statewide at-large ticket. Of the nine incumbent Democratic representatives, seven were re-elected on the general ticket and two retired, while both incumbent Republicans retired.
Maine was redistricted from four seats down to three; of four Republican incumbents, only one was re-elected; one retired and two were defeated by Democratic challengers.
Massachusetts was redistricted from 16 districts to 15; 10 Republican and 4 Democratic incumbents were re-elected, while 2 Republican incumbents retired in the old 8th and 9th districts; the new 8th containing parts of both elected a Democrat.
Minnesota, reapportioned from 10 seats down to 9, elected all representatives on a statewide general ticket. Of the 10 incumbents, only 1 Farmer–Labor and 1 Republican were re-elected. The other Republicans either lost re-election (4), lost renomination (3), or retired (1). The delegation changed therefore from overwhelmingly Republican (9–1) to a majority Farmer-Labor (5–4).
Missouri was reapportioned from 16 seats to 13, which were elected on a general ticket. The delegation went from 12 Democrats and 4 Republicans to 13 Democrats, 8 of them previous incumbents.
^Garner was elected in the House election, but did not take office to the next term after Franklin D. Roosevelt won the Presidential election when Garner was assuming the Vice Presidency. Henry Rainey became the new Speaker at the beginning of the 73rd United States Congress on March 9, 1933.