The Alien and Sedition Acts were
an attempt to prevent English immigrants and citizens from trying to overthrow the US government.
the first effort by the US government to define what citizenship was and lay down penalties for illegal immigration.
actually an attempt to stifle criticism of the Federalist Party and shut off support for the Democratic-Republicans.
declared unconstitutional by the Supreme Court due to their obvious infringement on First Amendment rights.
vetoed by John Adams but overridden by Federalist super-majorities in Congress.