Premise: Mount Rushmore . Mount Rushmore features 60 ft sculptures of the heads of four United States presidents : George Washington ( 1732 -- 1799 ) , Thomas Jefferson ( 1743 -- 1826 ) , Theodore Roosevelt ( 1858 -- 1919 ) , and Abraham Lincoln ( 1809 -- 1865 ) . Theodore Roosevelt . Upon entering politics , he became the leader of the reform faction of Republicans in New York 's state legislature . Roosevelt served as Assistant Secretary of the Navy under President William McKinley , but resigned from that post to lead the Rough Riders during the Spanish -- American War . Following McKinley 's assassination in September 1901 , Roosevelt became president at age 42 , and remains the youngest president .
Hypothesis: Theodore Roosevelt was active.
Label: ENTAILMENT