Answer:
They both make decisions affecting the country.
Step-by-step explanation:
The president, like any other kind of government, cannot make an official decision until consulting its congress. Although most would think the president has overall say they do not, they must get permission to do things first. If they cannot work together, nothing will be done or a lot more conflict will rise. And since this is not a dictatorship, the president WILL have to work with the congress. The president only has so much power.