Which U. S. president's assassination was influential in the creation of the creation of a federal law agency?
Lincoln
Kennedy
McKinley
Harrison

The 1901 assassination of President William McKinley created a perception that the United States was under threat from anarchists. The Departments of Justice and Labor had been keeping records on anarchists for years, but President Theodore Roosevelt wanted more power to monitor them.

the   square   deal   was   a   program   where   the   government gave any one   a fair   chance   to succeed

i think its provide for the common defense