Premise: Jon Meade Huntsman Jr. ( born March 26 , 1960 ) is an American politician , businessman , and diplomat who served as the 16th Governor of Utah from 2005 to 2009 , and as United States Ambassador to Singapore from 1992 to 1993 , and China from 2009 to 2011 . He has served in the administrations of five U.S. Presidents and was a candidate for the 2012 Republican presidential nomination . Huntsman has served in every presidential administration since Ronald Reagan . He began his career as a White House staff assistant for Ronald Reagan , and was appointed Deputy Assistant Secretary of Commerce and United States Ambassador to Singapore by George H.W. Bush .
Hypothesis: Jon Huntsman Jr. has not served in at least two different presidencies.
Label: ENTAILMENT