The Senate will turn down such a presidential appointment if it is opposed by a senator of the President's party from the State involved. The Senate's observance of this unwritten rule has a significant impact on the President's exercise of the power of appointment; in effect, this rule means that some senators virtually dictate certain presidential appointments. This excerpt from the text refers to .

Senatorial courtesy

Explanation:

Senatorial courtesy are usually said to be groups or sets of unwritten traditions in which state-level federal judicial posts nominees are confirmed not when senator from the state in which the nominee will serve pose an opposition to it( opposed it). This common tradition in it's applicability also affect or influences the courts of appeal when an opposition occurs from the nominee's state senator.

In appointment processes or procedures, the senatorial courtesy plays a huge role in that the federal appointees approved by senator are the ones that the Senate of the president's party in the state involved are the ones accepted.

it is the boston port act

can you explain it better