Which law penalized employers who hired illegal immigrants?

The Immigration Reform and Control Act (IRCA)

Explanation:

The Immigration Reform and Control Act (IRCA) was a law which penalized employers who hired illegal immigrants. The law was signed by President Ronald Reagan in 1986. This act of Congress required employers to attest to their employees' immigration status. What it meant in practice is that it made it illegal to hire or recruit illegal immigrants knowingly, under the risk of penalty.

In his letter, Jefferson focuses on how citizens must participate in their government. He describes three main points. First, government's power comes from the people. Second, the people can choose their representation. Third, all citizens have rights and responsibilities. By participating in their government, citizens protect their own interests and rights.