Which Quote is Real?

MITHRIDATES
Charles I: Our reign will stand up well in history. On our watch, they never cut off our head again.

Herbert Hoover: Our administration will stand up well in history. On our watch, the stock market never crashed again.

Quintus Sulpicius: Our military command will stand up well in history. On our watch, they never sacked Rome again.

Dick Cheney: Our administration will stand up well in history. On our watch, they never hit our country again.