President jackson stood up for the rights of states but acted forcefully to protect what

The authority of the federal government.

Explanation:

President Jackson stood up for the rights of states but acted forcefully to protect the authority of the federal government. He believed in a balance of power. Moreover, Jackson believed that both the state rights and the federal rights were to be restricted, and that this controlled power would produce less corruption. His mistrust of the federal government was criticized by many, including Alexis de Tocqueville.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.