Final answer:
President Johnson's social-welfare program was the Great Society, which included the establishment of new agencies and programs to address poverty and racial injustice.
Step-by-step explanation:
The social welfare program that was part of President Johnson's initiatives was the Great Society. It was a set of domestic programs proposed by Johnson to address issues of poverty and racial injustice. The Great Society included the establishment of new agencies such as the Department of Transportation and the Department of Housing and Urban Development, as well as programs like Food Stamps and direct payments to the poor.