he launched his campaign for senator in february. >> to embrace the notion that we're all in this together. that's the country i want for my kids. >> reporter: and who knows? even younger kennedys may be eyeing public office, too. jfk's granddaughter, rose, who bears a striking resemblance to her grandmother, jackie, wrote a speech in honor of her grandfather's birth. >> it caught to be possible in short for every american to enjoy the privileges of being american, without regard to his race or his color. >> we're faced with tremendous inequality and injustice. >> reporter: and all eyes on jack kennedy's grandson, also named jack, who is studying the former president's legacy carefully. >> my favorite speech was the speech he gave at rice university, explaining why we