What is the primary function of executive privilege?

The primary function of executive privilege is to protect presidential communications from public disclosure. This principle allows the president and high-level executive branch officials to withhold information from Congress, the courts, and ultimately the public, particularly when releasing that information would potentially harm national security, the functioning of the executive branch, or frank discussions among advisers. The idea is that certain communications need to remain confidential to ensure candid and robust policy discussions within the executive branch.

This privilege is rooted in the need for confidentiality in sensitive matters, allowing presidents to receive uninhibited advice without fear of external scrutiny, thus facilitating informed decision-making. While the privilege is not absolute, it serves a critical purpose in preserving the independence of the executive branch.