Final answer:
The process for creating laws involves Congress and the president.
Step-by-step explanation:
The idea of 'separation of powers' in the American constitutional system is exemplified by the process for creating laws involving Congress and the president. This is because the legislative branch, represented by Congress, and the executive branch, represented by the president, each play a specific role in the lawmaking process. Congress is responsible for proposing and passing laws, while the president has the power to either sign or veto those laws.
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