Neil Bush: Trump Behaviorally Challenged, Makes ‘Broad Generalizations Like He’s Running for 8th Grade Class President’. Friday on CNN’s “Erin Burnett Outfront,” Neil Bush, the brother of former President George W. Bush and former Gov. Jeb Bush (R-FL), sounded off on the night’s events at campaign event for Republican presidential front-runner Donald Trump, which was ultimately canceled. Bush, who has endorsed Sen. Ted Cruz (R-TX) for president, ripped Trump for his “ego” and for what he described as having a “behavior challenge.” He also questioned Trump’s claim to be a unifier.