Final answer:
The executive branch has the most authority and legitimacy to manage regulation due to its responsibility for implementing and enforcing laws.
Step-by-step explanation:
In examining the different branches of regulators (executive, judicial, or legislative), it can be argued that the executive branch has the most authority and legitimacy to manage regulation.
This is because the executive branch is responsible for implementing and enforcing laws made by the legislative branch. The executive branch, headed by the president or governor, has the power to issue executive orders, appoint regulatory agency heads, and propose regulations.
Additionally, the executive branch has the ability to heavily influence the legislative branch by setting the policy agenda and using their veto power to shape legislation. This gives the executive branch significant authority and control over the regulatory process.