Final answer:
Upon his election, President Kennedy attempted to enact his legislative agenda known as the New Frontier, with various initiatives. However, the exact legislative bill creating 71 new positions for the president to fill isn't specified in the provided information, although Kennedy's administration marked successes in defense spending and the minimum wage.
Step-by-step explanation:
When President John F. Kennedy was elected in 1960, the Democratic Congress immediately passed a new legislative bill creating 71 new positions for the president to fill. This action was part of Kennedy's intent to transform the broader political ideals into a concrete legislative agenda known as the New Frontier. The program sought to enhance various areas such as education, minimum wage, social security, and civil rights. However, a concise answer to the specific legislative bill mentioned in the question is not provided in the given texts; therefore, the exact name of the bill is not identifiable from the provided information.
Kennedy's administration faced significant challenges, including a slim electoral margin and a conservative Congress resistant to some of his initiatives. Still, some successes included New Frontier legislation proposals that increased the Department of Defense spending. Although Kennedy was assassinated in 1963 before he could see all parts of his vision realized, his successor, Lyndon B. Johnson, carried forward Kennedy's legacy, particularly regarding civil rights legislation.