Federalism was proposed and created in 1777. The United States that a national government is constituted of department all three parts such as, the congress, the president and the federal courts. There are three distinct branches legislative, executive and judicial belong to these departments. I found a few texts of the U.S. Constitution to support federalism I found Article I, section 8 which authorize powers to congress. Therefore, congress can declare war, coin money and tax collection. Recently, Trump government announced tariff and investment restrictions on China. American medias have been reporting about possible of trade war but national government does not put it into practice. By reason that this proposal need to be passed through
