Final answer:
Robert Kennedy championed the democratic principle of racial equality, with a strong focus on securing voting rights for African Americans and supporting federal intervention in civil rights issues.
Step-by-step explanation:
Robert Kennedy, in his capacity as Attorney General during his brother John F. Kennedy's administration, addressed the democratic principle of racial equality and voting rights. He was particularly focused on securing the voting rights of African Americans, understanding the significance of this issue in the broader civil rights movement.
In the context of the era, Kennedy also had to balance the south's opposition to these changes with the overall aspirations of American foreign and domestic policy, especially with regards to the Cold War and the image of the United States globally.
His advocacy for civil rights was symbolized by his efforts to support federal intervention in civil rights, for instance, when deploying the military to uphold James Meredith's right to attend the University of Mississippi.
Actions like these and his appeals for nonviolence in the wake of Dr. Martin Luther King Jr.'s assassination highlight the principle of racial equality as a fundamental democratic value that Robert Kennedy championed.