The president has made an informal change to the constitution by creating executive agreements with other heads of states. what is the difference between a treaty and an executive agreement?
a. a treaty does not need congressional approval while an executive agreement needs congressional approval.
c. a treaty is used during peace time and an executive order is used during war.
b. a treaty is only used in war and an executive order is only used during peace time.
d. a treaty

The difference between a treaty and an executive agreement is a) a treaty does not need congressional approval while an executive agreement needs congressional approval. An executive order is defined as "an issue ordered by the president of the United States to help officers and agencies of the executive branch manage the operations within the federal government itself." A treaty is defined as "an agreement under international law entered into by actors of international law, namely sovereign states and international organizations."