Name:   au67 - Subject:   Think about it Date:   5/22/2018 9:32:20 AM (updated 5/22/2018 9:33:41 AM)

Now, Therefore, I, Lyndon B. Johnson, President of the United States of America, by virtue of the authority vested in me by the Constitution and laws of the United States, including Chapter 15 of Title 10 of the United States Code, do command all persons engaged in such acts of violence to cease and desist therefrom and to disperse and retire ...blah, blah, blah...

- From his proclamation 3841, April 7, 1968

This is just the first that came to mind...I'm sure there are others!