Final answer:
President Johnson's first priority in domestic policy was to break the congressional stalemate that had obstructed Kennedy's initiatives, and he was committed to carrying out Kennedy's goals while introducing his Great Society program.
Step-by-step explanation:
President Johnson's First Priority on the Domestic Front
Following the assassination of President Kennedy, President Johnson's first priority on the domestic front was to break the logjam in Congress that had blocked Kennedy's legislative efforts. Johnson's presidency commenced with a vow to accomplish the goals set by Kennedy and to expand the federal government's role in securing economic opportunity and civil rights for all. Johnson's Great Society vision aimed at creating a society where liberty and justice were not mere words but were realized in full by every citizen.
Johnson was instrumental in persuading Congress to pass significant legislation such as the Civil Rights Act of 1964 and directed more funding to public education, established Medicare, and imposed higher consumer product standards. Moreover, Johnson's legislative success led to the passage of consumer protection laws and improvements in public transportation, not to mention his support for the arts and the environment through the establishment of various programs and endowments.
Johnson's presidency was marked by a determination to achieve Kennedy's plans and introduce his agenda, which went beyond upholding civil rights to also include the eradication of poverty and investment in education and the arts—all facets of what would be known as his Great Society program.