(Need to you a multimedia presentation and i need choose one plus i go on it pls help!!)In the period 1945-1990, which branch of the federal government, the executive, legislative, or judicial, was most influential in guiding the direction of the United States.

Explanation: In federal systems, political authority is divided between two autonomous sets of governments, one national and the other subnational, both of which operate directly upon the people. Usually a constitutional division of power is established between the national government, which exercises authority over the whole national territory, and provincial governments that exercise independent authority within their own territories. Of the eight largest countries in the world by area, seven—Russia, Canada, the United States, Brazil, Australia, India, and Argentina—are organized on a federal basis. (China, the third largest,