Congressional elections occur every two years on the first Tuesday after the first Monday in November. In each election, all 435 House members face reelection, while only 33 or 34 of the 100 Senate seats are up for election. House members serve two-year terms; senators serve six-year terms, creating a staggered rotation that prevents complete congressional turnover.
The House's two-year cycle makes it responsive to public opinion shifts—if the majority party loses public support, it can lose control in the next election. Senate's six-year terms provide continuity; even in a landslide election, the minority party retains roughly one-third of seats. This structural difference shapes campaign strategy: House candidates focus on local issues and constituent service, while Senate candidates often run on national themes.
Congressional elections are administered by states and localities under Article I, Section 4. Congress can override state procedures but rarely does, except through laws like the Voting Rights Act and National Voter Registration Act. House districts are redrawn every 10 years after the Census, so congressional elections always occur under district boundaries approved by state legislatures, commissions, or courts.
Congressional elections are the mechanism citizens use to hold Congress accountable. Two-year House cycles mean public displeasure can flip control quickly—but only if people vote. Off-year low turnout often gives the party out of power House seats.
People often confuse congressional elections with presidential elections. Congressional elections occur in both odd and even years (every two years), but receive far less media attention than presidential elections. Midterm elections (off-year congressional elections) often punish the president's party.
Congressional elections are the mechanism citizens use to hold Congress accountable. Two-year House cycles mean public displeasure can flip control quickly—but only if people vote. Off-year low turnout often gives the party out of power House seats.
People often confuse congressional elections with presidential elections. Congressional elections occur in both odd and even years (every two years), but receive far less media attention than presidential elections. Midterm elections (off-year congressional elections) often punish the president's party.