2004 United States House of Representatives elections National Committee Debbie Wasserman Schultz. As of 2018, this is the last election in which someone who was not from the Democratic or Republican party was elected to the House. This is also the most recent election in which Republicans made a net gain of seats in the House during a Presidential election year. On the same date were the 2004 Presidential election, the 2004 Senate election, and many state gubernatorial elections. There were three special elections held in 2004, all of them separate from the November elections. Key to party abbreviations: AI=American Independent, C=Constitution, D=Democratic, G=Green, I=Independent, IP=Independence Party,
Off-year election Off-year election An off-year election is a general election in the United States which is held when neither a presidential election nor a midterm election takes place. The term "off-year" may also be used to refer to midterm election years as well. Off-year elections during odd-numbered years rarely feature any election to a federal office, few state legislative elections, and very few gubernatorial elections. Instead, the vast majority of these elections are held at the county and municipal level. On the ballot are many mayors, a wide variety of citizen initiatives in various states, and many more local public offices.