As a means to curtail the use of presidential power, "congressional oversight" serves as a check of executive authorization and
appropriation.

The correct answer to this open question is the following.

Unfortunately, there is no question here. It is just a statement.

What is your question? What do you want to know?

If this is a true or false question, then the correct answer would be "true."

It is true that as a means to curtail the use of presidential power, "congressional oversight" serves as a check of executive authorization and appropriation.

As part of its faculties, the United States Congress uses this oversight power when Congress has to establish relationships or negotiations with the President of the United States.

US Congress has to guarantee that laws are established are were discussed by the members of the House of Representatives and the Senate.

Let's have in mind that under the system of checks and balances, none of the three federal government branches -the Legislative, the judicial, and the executive branch- has more power over the other two.