Forces under the leadership of fought for increased railroad regulation in the first years of the twentieth century.

Explanation:

English: Political, economic and social doctrine, born in the late eighteenth century, which defends the freedom of the individual and a minimal intervention of the state in social and economic life.

Spanish: Doctrina política, económica y social, nacida a finales del siglo XVIII, que defiende la libertad del individuo y una mínima intervención del estado en la vida social y económica.