Why did the U.S. Senate ultimately not ratify the Trans-Pacific Partnership?

The U.S. Senate did not ratify the Trans-Pacific Partnership (TPP) largely due to public opposition to globalization, which is reflected in the correct choice. Throughout the negotiations and discussions surrounding the TPP, there was significant public outcry and scrutiny over the potential implications of the agreement on American jobs, labor standards, and environmental regulations. Many citizens perceived the TPP as a threat to domestic industries and workers, leading to increased skepticism about the benefits of such trade agreements.

This public opposition played a critical role, influencing lawmakers who were concerned about the political fallout from supporting a deal that many constituents viewed unfavorably. Additionally, widespread criticism came from both sides of the political spectrum, making it increasingly challenging for members of the Senate to support ratification without facing backlash from their voter base. Consequently, the combined factors of public distrust and negative perceptions of globalization led to the Senate's decision not to move forward with ratifying the TPP.