Final answer:
The low US score on the democracy index is due to factors such as low voter turnout, perceived lack of meaningful choice between political parties, and concerns over the influence of special-interest groups. Additionally, frequent elections and uncompetitive races can discourage voter participation.
Step-by-step explanation:
The US scores low on the democracy index for various reasons. One significant factor is voter turnout, which is lower in the US compared to other OECD countries. When citizens do not vote, it raises questions about the effectiveness of the democratic process and suggests a degree of public disenchantment with the government. This disenchantment can be attributed to the perception of a lack of meaningful choice between political parties, concerns over the influence of special-interest groups in politics, and a feeling of alienation from the political system. Additionally, frequent elections and the lack of competitiveness in many races can discourage voter participation.
Lastly, there is a concern about whether the government truly reflects the will of the people, given the strong influence of special-interest groups and the perception that the two major parties have a stranglehold on power. Such factors can also contribute to the low US score on the democracy index, as they potentially undermine the principles of popular sovereignty and equal representation within a democracy.