If you are referring to the laws put in place in the late 19th and early 20th century, than the answer is the direct election of US Senators.
During the early 20th century, America was experiencing a significant political change which resulted in the Progressive era. This Progressive era was focused on giving individual citizens more political and social rights. This included helping women get the right to vote and ensuring that immigrants and blacks got to vote for their senators. This became a reality thanks to the passing of the 17th amendment of the US Constitution.
Review by the US Supreme Court of the constitutional validity of a legislative act.
(in the UK) a procedure by which a court can review an administrative action by a public body and (in England) secure a declaration, order, or award.
W. E. B. Du Bois disagreed with Booker T. Washington and believed that African Americans should demand equality and go to the best colleges for a liberal arts education . Du Bois referred to an African-American intellectual elite as the "Talented Tenth" as this was the way towards leadership.
Answer:
George Washington : father of the country, commander in chief of the continental army and first established president.
Alexander Hamilton : chief of staff for Washington and first secretary of treasury
Thomas Jefferson : the principal author of declaration of independence