The table below displays reelection rates for incumbents in the United States House of Representatives and the United States Senate from 2012 to 2022.
| Election Year | House Reelection Rate (%) | Senate Reelection Rate (%) |
|---|---|---|
| 2012 | 90% | 91% |
| 2014 | 95% | 82% |
| 2016 | 97% | 93% |
| 2018 | 91% | 84% |
| 2020 | 96% | 86% |
| 2022 | 94% | 100% |
Which of the following statements best explains the trend illustrated in the table?
- AEvery six years, Senate districts are redrawn during redistricting cycles to make them more competitive, whereas House districts are redrawn only once every ten years.
- BThe Senate's constitutional powers to ratify treaties and confirm judicial nominations alienate voters, whereas the House's focus on local revenue bills keeps constituents satisfied.
- Representatives in the House benefit from representing smaller, more homogeneous districts that are frequently drawn to favor one party, whereas Senators must appeal to more diverse, statewide electorates.Answer
- DHouse incumbents rely entirely on a delegate model of representation to satisfy local voters, whereas Senators must adopt a trustee model that frequently conflicts with public opinion.
Answer
Representatives in the House benefit from representing smaller, more homogeneous districts that are frequently drawn to favor one party, whereas Senators must appeal to more diverse, statewide electorates.
The correct answer is correct because House districts are smaller, more politically homogeneous, and subject to partisan redistricting (gerrymandering), which creates safer seats and higher average reelection rates. In contrast, Senators represent entire states, which are larger, more politically diverse, and cannot be gerrymandered, leading to more competitive elections.
Step-by-Step Solution
Key Concept
House districts are smaller and can be gerrymandered to create safe seats for incumbents, whereas Senate races cover entire states with diverse electorates and higher-profile challengers, resulting in generally lower and more volatile Senate reelection rates.