After the court-packing attempt, how did the change in the jurisprudence of the u. s. supreme court affect american life? changing sentiments in the u. s. supreme court led to the erosion of the wagner act. the newfound resolve of the u. s. supreme court meant a restoration of the national recovery act. the new lineup in the united states meant that roosevelt had to abandon plans for universal health care. the new political climate in the u. s. supreme court meant that a federal child labor ban could stand constitutional muster. a chastised supreme court began to focus on securing constitutional protections for a burgeoning civil rights movement.