tonight on "nightline," the workout kid. in one of the hottest names in fitness with a hit dvd, rock-hard abs and astounding club. he is only 10 years old, but it is really healthy? plus, here comes rosie. tonight, obama ra winfrey welcomes the rosie show to her network. >> i knew she had the goods. >> one of the sharpest tongues tells us what it's like to be back. >> i passed it. i'm not sure how but i did.

>> and weighing in. president george w bush sits down with bob woodruff. what he thinks on the war on terror now. good evening. we begin with children's health. childhood obesity gets the lion's share of the headlines. tonight, we take a look in the opposite direction. starting with a fitness guru with six pack abs. his name is c.j. senter, and his body is amazing. is there a thing as too much.

>> reporter: who other than justin bieber gets this kind of welcome? he is a pint sized celebrity training. just 10 years olds, c.j. has motivated the 4r50 kids in elementary school to get on his feet. this is how he trained them. >> now up jump, and then repeat. >> it's hard. >> it is. >> c.j. senter is the workout kid whose videos plan to help get them in shape like him. that is an eight pack. there are few adults who want him to have an six pack. he puts me to shame. how many do we have to do? >> when you get tired. >> i'm tired now.

c.j. parties said his self-discipline extends to his diet. do you eat candy? >> i do, but not a lot. >> a little, not a lot. what about junk food? >> no, i like eating fruits and vegetables. >> he is not the only kid fix yated on getting lean and mean. why there is a worry about obesity in kids there is a worry about kids training like olympic athletes. >> i have seen it doubles injuries to young kids ages 8 or 9 with overusage. >> doctor gotlin says a lot of it is hours of practice in sports. but maybe because all of their heroes now look like c.j. >> i do it once a day. >> once a day? the whole video? dha is amazing. >> the last few weeks, i lost

about ten pounds. >> ten pounds? >> yeah. >> were you heavier? >> yeah. >> that may be wishful thinking. but we find kids that are body conscious. >> what was it like meeting c.j.? >> i like his muscles. >> do you have muscles like c.j.? >> nice. >> every doctor agrees that what he is doing is better than playing video games four hours a day. but they disagree if peewee competitors can overdo it. how much is too much? >> the guidelines, if they work out, up to an hour a day. and that is mixing water breaks every 15 or 20 minutes. >> for extreme miniathletes,

physical fitness can become harm. this kid was known in the '90s because of his physique. the claim was his parents put him on an exercise program and exploited him. they denied the charges. >> hopefully c.j. doing it for the right reasons. >> some people think that he is too dwroung be that ripped or have six pack abs. >> i would say that is not something that he set out to do on purpose. it's exercising and normal play as a child, he developed physique. >> you are not forcing him to do push-ups in. >> not at all. >> he did with calisthenics, no weight lifting. c.j.'s parents claim they

donated thousands of dvds. you are in it on help other kids. >> yeah. >> how many have you sold or given away. >> we have given away -- >> about as many as we sold. >> he wants to play in the nfl but he has an impressive body of work. >> we just learned that c.j. has been selected as a finalist in the 2011 "sports illustrated" sports kid of the year award. more tomorrow on "good morning america". still ahead what was rosie o'donnell have to say about being tapped by oprah for her own network? >> i was like, i feltic i was knighted by the queen. i was like, i will serve. tuff f. oh there's tons. french presses, espresso tampers, filters.

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she had one a bushel of emmys. she is bold ander rev rant but that changed with obama ra winfrey brought rosie o'donnell back on her own network. as you see, rosie is as funny and feisty as ever. ♪ you hear oprah say you can do the show your way ♪ ♪ remember my problems on the view ♪ ♪ i told hasselbeck a thing or

two ♪ ♪ i'm true i'm gay but i'm not dead ♪ >> what is it like to be back on your own show? >> i'm not over. >> it's been four years since her controversial stint on the "view." and ten years since she walked afwra the "rosie o'donnell show" that won here an arm of emmys. back then, she was idolizing tom cruise. >> i hope you will visit me in miami. >> please welcome russell brand. >> he is her first guest. >> he placed tom cruise? >> i sent tom and text and said,

he is in. >> the rosie show is filmed here. at harpo study yois. hallowed ground for oprah for 20 years. rosie is not trying to channel oprah. this is what i look like in the morning. if we lived together, you would see this often. during makeup, we say hello. >> i put on a bathroom. i usually have no bra and nipples to the wind. >> no spanx. >> yeah, when i get up there, i will be spanxed out. and i just found out a pull and pee part of spanx. you have seen -- show leer. you are supposed to pull, squat and release. >> it's rosie, bold, funny and

irreverant. >> i feel like i was knighted by the queen. i will serve. >> what was the queen see? rosie? >> she was the only person in my 25-year reign -- the only person who came close to beating me was rosie. i knew she has the goods. she has the goods. >> her style backstage, all her own. and her kids and dogsing welcome. and behind the scenes cameras caught her reaction. >> what happened to the walls? >> they in storage if you need them. >> it's a different way of working. >> i heard it's a different way than you do it. >> yeah, it's -- if it works for you. >> when i heard that rosie actually might be interested in signing on with me and own, i

really couldn't believe it. i was like, really? she would do that? and i went on a plane to see her and hear from her own lips this is true. >> and while oprah didn't say it, i had to take a little dournlg hire rosie, what rosie seems to recognize. >> why do you think she came to see you? >> i think she wanted to see how and who and where i was in my life. >> do you think part of it was the crazy check? >> totally. and she hugged me and i said, you did come to see if i was crazy? i passed the crazy check. >> the last time well saw rosie and is "the view" when she and elisabeth hasselbeck had it out.

>> are you okay with it? >> i was watched it back and i felt the betrayal and the sadness. i worked very hard to befriend elisabeth. >> have you and she spoken? >> no, we have spoken on the twitter. >> have you talked to barbara. >> i have. and we hope to have a meal. barbara, i'm sorry. >> what did you learn from the experience? >> i think i learned from me, if i can't be the boss of a show, i shouldn't be on on the show. >> steve, i'm on your bucket list. come down to meet me. >> this time, she is the boss and less angry. she is continuing to take estrogen.

and continues to fight depression. >> i told oprah, i am stable and i doing well. but i have to fell you, a world catastrophe, i need a week off. >> but with medication, you feel pretty good. >> very good. probably the best in a long time. >> aim wearing prada shoes which are hard to walk in. >> for rosie there is more to been a celebrity. parker, conner, chelsea and lilly. >> i know that it's a pleasure to raise three kids. >> people say, it's great of you to adopt. and i felt like they were swimmys. i put one of each arm and so i couldn't drown. and the birth parents, i want to look them in the eyes and say thank you.

because you made my life worth lifg. >> after famouses marying, they divorced. when your world fell apart, did i feel like you bllet down gays? >> yeah, and it was painful and humbles. >> she found love at the starbucks. where she found her girlfriend. >> i thought she was a 20-year-old heterosexual woman. >> and your gaydar was off. she is authentically rosie. >> it's good be me. ignore the environment. actually, it's cleaner. and, it provides jobs. and it helps our economy. okay, i'm listening. [announcer] at conoco phillips we're helping power america's economy with cleaner affordable natural gas...

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and finally tonight, politics and golf. president george w. bush teed off in the warrior open a golf tournament he is hosting for military veterans wounded in iraq and afghanistan and bob woodward joined him for the interview. >> i don't have any legs. >> there we go, great shot. >> reporter: since leaving office, president george w. bush hasn't spoken much in public but when it comes to the wounded veterans in iraq and afghanistan, he makes an exception. how do you plan to ride bikes with the guys that have come back from the war? >> i suspect as long as i'm

able. it was my decision to put them in combat. >> reporter: you pew research center says that one in three veterans that served in iraq and afghanistan believe this war was not worth fighting. >> well, i hope history proves them wrong. the only way to reach peace is for societies to emerge. and history takes takes awhile to unfold. >> did any of the veterans tell you that? >> no, i haven't had one veteran tell me that. >> reporter: the numbers are astounding. 36,000 injured, and many suffering from post traumatic stress disorder. >> did you ever suspect this? >> i never thought. but there are great stories. >> reporter: you never thought ten years of war? >> i knew it was going to be ten

years for democracy to take root. >> reporter: obama has relied more on drones and targeted intelligence that led to the killing of osama bin laden and anwar al awlaki. this is in pakistan and yemen, where we didn't have boots on the ground. is that a better strategy? >> if i thought that was a better strategy, i would have used it in the first place. i don't thu can remove the taliban from power by using drones. >> reporter: president bush doesn't talk much about politics. there is another governor in texas running -- >> i'm not going to talk politics. i'm going to stay out o