Final answer:
President Kennedy uses anaphora in the excerpt to emphasize the necessity of equality for all Americans, regardless of race, particularly in accessing public institutions, voting rights, and civil liberties.
Step-by-step explanation:
President Kennedy emphasizes his point in the excerpt by using anaphora to emphasize the lack of equality. This rhetorical device involves the repetition of a phrase at the beginning of successive sentences to provide emphasis and structure to the text. In this case, Kennedy repeatedly uses the phrase 'It ought to be possible,' underscoring the idea that certain rights and freedoms should be accessible to all Americans regardless of their race or color.
Kennedy's call for equality aligns with his efforts to secure the voting rights of African Americans and to advocate for civil rights, which included measures such as the creation of the Council for Equal Employment Opportunity and support for the Civil Rights Act of 1960.