Protect America against immigrants from enemy countries.
John Adams signed the Alien and Sedition Act in 1798.
Alien and Sedition Acts--- it was passed without his consent
I think you are referring to the Alien and Sedition acts, particularly the Alien acts.
First of all, the Alien and Sedition Acts are separate. But anyway, the president in office at the time was John Adams.
Alien and Sedition acts
The anti-federalist generally favored the alien and sedition acts. They were passed during the John Adams administration. Adams was the star of the Federalist party.
The alien and sedition acts were passed by president John Adams
John Adams
The alien and sedition act was passed while John Adams was president. All acts that as passed are passed by Congress.
less popular
John Adams was the president responsible for both the XYZ affair and the Alien and Sedition acts. The XYZ affair was a diplomatic incident with France in the late 1790s, while the Alien and Sedition acts were a series of laws passed in 1798 that aimed to limit immigration and silence criticism of the government.
There was no single author of the Alien and Sedition Act. It was written by the former political party, The Federalists.