The u.s. constitution Donaldo Berber per2 preamble We the people of the united States, in order to from a more perfect union,establish justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the blessings of liberty to ourselves and establish this constitution for the united states of america. The purpose of the preamble Separation of powers executive jujudicial legislative The legislative branch The power of congress Writes the laws Confirm presidential appointments Approves treaties Grants money Declares war The executive branch The powers of the executive Proposes laws Administers the laws Appoints ambassadors and the officials Conducts foreign policy Makes treaties The judicial branch The power of the supreme court Interprets the constitution and other laws Reviews lower-court decicions Federal judicial system Supreme court Review cases appealed from lower federal courts and highest state courts Courts of appealds Review from district courts Distric courts Hold trails Relations among states National Declare war Maintain armed forces Regulate Intrestate and Foreign trade Admit new states Establish post office Set standard weights And measures Coin money Establish foreign Make all laws necessary and proper for carrying out delegated powers The us federal government separation of powers legislative executive judicial popul ation 2= senat e resident Vice president cabinet Supreme court Court of appeals District court