The National School Board Association apologized for its letter to President Joe Biden calling for help from federal law enforcement to assist with “threats and violence” from parents and protesters.

The group said there was “no justification” for the language used in its Sept. 29 letter to the Biden administration calling some parents’ actions “the equivalent to a form of domestic terrorism” as parents throughout the United States lock horns with school administrators over transgender policies, the use of critical race theory, and mask mandates.