Premise: George W. Bush . From a prominent political family , he is the eldest son of Barbara and George H. W. Bush , the 41st President of the United States , making him only the second president to assume the nation 's highest office after his father , following the lead of John Quincy Adams . His brother , Jeb Bush , a former Governor of Florida , was a candidate for the Republican presidential nomination in the 2016 presidential election .
Hypothesis: George W. Bush's older brother is Jeb Bush.
Label: CONTRADICTION