Who was the target of the Palmer Raids? Who was Palmer?

Palmer was US Attorney General Mitchell Palmer

The targets of the Palmer Raids were suspected communists, socialists and anarchists

In all the Palmer Raids, arrests greatly exceeded the number of warrants that had been obtained from the courts, and many of those arrested were guilty of nothing more than having a foreign accent.

https://www.britannica.com/topic/Palmer-Raids

The disregard of basic civil liberties during the “Palmer raids,” as they came to be known, drew widespread protest and ultimately discredited Palmer, who nevertheless justified his program as the only practical means of combating what he believed was a Bolshevik conspiracy to overthrow the U.S. government.