Final answer:
The similarity lies in both Presidents using federal troops to enforce federal law--Washington during the Whiskey Rebellion and Eisenhower during the Little Rock 9 incident to maintain order and authority.
Step-by-step explanation:
The Presidential actions during the Whiskey Rebellion and the Little Rock 9 incident are similar in the sense that both involved the federal government stepping in to enforce federal law and maintain order. In the Whiskey Rebellion of 1794, President George Washington used federal troops to suppress a tax revolt, seeing it as a threat to the new national government's authority.
In contrast, during the Little Rock 9 incident in 1957, President Dwight D. Eisenhower sent federal troops to ensure that African American students could attend Central High School in Little Rock, Arkansas, upholding the federal law that mandated desegregation following the landmark Supreme Court decision in Brown v. Board of Education.