How does the constitution ensure a smooth transition of power in the event of a presidential disability

The 25th amendment provides specific rules for the Vice president to become acting president.

Explanation:

The Twenty-fifth Amendment to the Constitution of the United States that established succession rules for vacancies and disabilities of the office of the president and the vice president were passed by Congress on July 6, 1965. Ratified February 10, 1967. It was proposed by the U.S. Congress on July 6, 1965, and was ratified on Feb. 10, 1967.

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answer; knowledge,reason,and judgement;