What is one power reserved exclusively for the federal government?

Regulating interstate commerce is a power explicitly reserved for the federal government, as outlined in the U.S. Constitution. This authority is derived from the Commerce Clause, which enables Congress to regulate trade and interactions that cross state lines. This power is essential for maintaining a consistent and effective national market, allowing for the regulation of economic policies that impact multiple states simultaneously.

In contrast, conducting elections is primarily managed at the state level, as states determine their own voting processes and regulations. Establishing local governments and managing public schools are also powers typically under the jurisdiction of state and local authorities, reflecting the decentralized nature of governance in the U.S. Therefore, the ability to regulate interstate commerce distinctly illustrates a power that is reserved solely for the federal government, highlighting its role in facilitating interstate relations and economic interactions.