Under which set of powers does the president make recommendations to congress through the state of the union?

The State of the Union Address is an explicit constitutional power that is given to the President of the United States of America.

Explanation:

The State of the Union Address is an annual event that consists of a report that the President of the United States gives to Congress about the state of the country. The speech is also used for the president to present his legislative proposals for the year. It has always been presented in January of each year, and only on seven occasions in February.

Modeled after the throne speech during the opening ceremony of the parliament in the United Kingdom, the report is established by the Constitution in its Article II, Section 3.

they change the constitution.