ad featuring his brother, the former president george w. bush. >> i know jeb. i know his heart and strong backbone. jeb will unite our country. he knows how to bring the world against terror and he knows when tough measures must be taken. experience and judgment counts in the oval office. >> we have also seen jeb's mother, former first lady barbara bush, who's already hit the campaign trail with her son in new hampshire. >>> the republican race is getting a little too close for