Although well-planned, Albert's efforts on behalf of the Medicare bill were not successful at that time. After Kennedy's assassination, Albert worked to change House rules so that the majority Democrats would have greater influence on the final decisions of Congress under President Lyndon B. Johnson. The changes included more majority leverage over the House Rules Committee and stronger majority membership influence in the House Ways and Means Committee. With these changes in place, Albert was able to push through the Medicare bill, known as the Social Security Act of 1965, and to shepherd other pieces of Johnson's Great Society program through Congress. Albert did not sign the 1956 Southern Manifesto, and voted in favor of the Civil Rights Acts of 1960, 1964, and 1968, as well as the 24th Amendment to the U.S. Constitution and the Voting Rights Act of 1965, but voted against the Civil Rights Act of 1957.