At the age of 12 , Bush spoke before the 1988 Republican National Convention , which nominated his grandfather . He also spoke at the 1992 convention on the occasion of George H. W. Bush 's renomination . He campaigned for his uncle , George W. Bush , during the 2000 and 2004 presidential campaigns . In his speeches he stated support for his uncle 's position in favor of comprehensive immigration reform
1992 convention
1992 Republican National Convention
George P. Bush