NEW : GOP critics say Napolitano ignored laws regarding undocumented immigrants . Janet Napolitano says she will leave the Cabinet in September . She graduated from the University of Santa Clara in California in 1979 as its first female valedictorian . Comment: She will be nominated to be president of the University of California system .
NEW : GOP critics say Napolitano ignored laws regarding undocumented immigrants . Janet Napolitano says she will leave the Cabinet in September . Comment: She will be nominated to be president of the University of California system .