Final answer:
The Senate may be seen as undemocratic due to equal state representation regardless of population, supermajority requirements for legislation, and infrequent elections relative to the House.
Step-by-step explanation:
Some might argue that the organization of the Senate is undemocratic because it provides equal representation to each state, regardless of population size, enabling states with smaller populations to exert influence disproportionate to their size. Additionally, the Senate's supermajority requirement, often manifested through the filibuster, requires a 60-vote threshold to end debate on legislative issues, creating a de facto higher barrier for passing legislation. This can stifle the majority's ability to enact policy and gives considerable power to individual senators or a minority of senators to block legislation.
Furthermore, senators have six-year terms, which means they face re-election less frequently than House members, making them seemingly less responsive to the immediate will of the electorate. Initially, senators were even more distant from the public as they were appointed by state legislatures, although this has changed since the ratification of the Seventeenth Amendment allowing for the direct election of senators. Finally, with only a slim majority needed to control the Senate, and given the equal representation of states, the political power can tilt significantly even with small shifts in party control.