charleston s.c. former president george w. bush come aid brother jeb bush republican presidential campaign south carolina monday rouse endorsement character call voters reject angry bluster donald trump appearance elder bush campaign trail may help jeb bush south carolina republicans hold former president high regard also carry risk give launch iraq war 2003 end unpopular many americans republican front-runner trump seize criticize george w. bush stay politics part since leave office early 2009 show remain engage speaker generate cheer repeatedly 20 minutes big crowd jeb bush enjoy campaign without mention trump name 69-year-old george w. bush leave doubt talk new york billionaire use incendiary rhetoric campaign events tough time know americans angry need someone oval office mirror inflame anger frustrations former president say real strength say mean face challenge prevail strength empty rhetoric bluster theatrics real strength come integrity character experience strong person usually loud person room george w. bush say whether elder bush presence help 63-year-old brother south carolina republican primary saturday remain see jeb run fourth poll south carolina behind trump texas senator ted cruz florida senator marco rubio trump news conference charleston early day continue stream insult direct bush family insist former president bore responsibility sept. 11 2001 attack take place watch excuse world trade center come reign george bush right come great attack history unite state bad pearl harbor .... safe trump say george w. bush offer vivid imagery take place sept. 11 without address trump criticism salute u.s. military personnel key constituency south carolina first public campaign appearance year brother george w. bush also meet privately south carolina republican governor nikki haley yet endorse candidate primary vote george w. bush stand rise among americans since leave power 2009 stay sideline brother presidential bid headline private fundraisers otherwise stay campaign trail get public show urgency jeb bush see good performance south carolina bush finish sixth place iowa caucus fourth place new hampshire primary first contest state-by-state battle pick party nominee nov. presidential election jeb bush predict good show saturday tell crowd saturday go surprise trump also keep eye cruz try prevent gain grind issue statement accuse cruz dirty politics run negative ad trump also threaten sue cruz determine whether legally serve president since bear canada therefore might meet requirements set u.s. constitution one ways fight back bring lawsuit trump say additional report andrea shalal washington edit frances kerry dan grebler sap sponsor content independently create reuters editorial staff fund part sap otherwise role coverage jeb bush get brotherly hand george w. south carolina