the president, according to the constitution has the executive power  that executive power depends to a large part on the willingness of congress to provide the legal framework   moments in which there is harmony and cooperation between president and congress tend to be exceptional rather than er a regular feature of the american system  and if er the president manages to get something through congress, you can bet that very quickly the president will face some defeat in congress shortly thereafter to remind the president that the united states does not have, contrary to the popular press, does not have a presidential system of government.