My loyalty is due the United States, and therefore it is due to the President, the Senators, the Congressmen, and all other public servants only and to the degree in which they loyally and efficiently serve the United States.

Theodore Roosevelt (1858–1919) American politician, statesman, conservationist, writer, US President (1901–1909)

Essay (1918-04-06), “Citizens or Subjects?” Kansas City Star
    (Source)

Regarding a bill which had just passed the Senate Judiciary Committee which would fine and imprison any one who used "contemptuous or slurring language about the President."

This passage was added to later editions of his essay, "Lincoln and Free Speech,", as printed in The Works of Theodore Roosevelt, vol. 21, The Great Adventure, ch. 7 (1925). It does not appear in the original version of the essay or book.