During the presidencies of Theodore Roosevelt and William Howard Taft, the Supreme Court's role in progressive reform can best be characterized by the choice:
The Supreme Court actively regulated trusts and monopolies.
The Supreme Court during this period made significant rulings related to antitrust laws, reflecting the Progressive Era's focus on regulating large corporations and monopolies. The Court upheld the federal government's authority to break up monopolies to promote competition and protect consumers, which aligned with the progressive goals of the time.