this is "nightline." tonight, donald j. trump clinching the republican nominee. his four grown children right there frp the historic moment. >> congratulations, dad, we love you. >> two of them wowing the crowd here with prime time speeches. this, as charges of plagiarism flying with potentially first lady melania. and michelle obama in 2008. >> your willingness to work hard for them. >> and your willingness to work hard for them. >> also, being ivanka trump. she is gearing up to introduce him at this convention. >> i'm trying to avoid the

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and good evening from cleveland, the site of the republican national convention. the g.o.p. now officially has its nominee, and his name is donald trump. the grand old party is new the

party of trump. it maybe fraktous, it maybe but never boring. history is made here. the role call that formally awarded their father the hard earned prize. >> it is any honor to be able to throw donald trump over the top tonight with 89 delegates and another 6 for john kasich. congratulations, dad, we love you! >> everybody knows the song and they're on their feet here. it is now official. donald j. trump, a businessman with zero prior political experience, has now officially won the nominee for president of the republican party, which he will accept right here in this room on thursday night. trump later appear bid video in the hall. >> today has been a very, very

special day. watching my children put me over the top earlier, the party seal, doing what we did, getting the party's nominee. i will never forget it. it is something i will never, ever forget. >> during the celebrations after he clinched the nominations, what many saw as a telling moment, three of their siblings hugs, awkwardly left out, tiffany. hours later, tiffany, a 22-year-old who we have not always heard on the campaign, strode on the stage to speak in prime time. >> please excuse me if i'm a little nervous. when i graduated from college month ace go i never thought i would be here. never in an arena with more than 10 million people watching. >> tiffany is the only child to

trump's mage to marla maples. she has kept distance from the presidential race. this moment, one of her rare appearances since the campaign began. >> i'm so happy to be tiffany trump. with my siblings. >> her instagram account shows a typical life for an heiress. and her single, "like a bird" ♪ don't you know >> but on stage today, she took the time to show her father as a doting dad. >> i look forwards to introducing him to my friends. the ones with preconceived

notions. they meet one with a great faca facade. >> not one delivered by melania last night. >> it would not be a contest without a drama. >> that speech was the source of controversy. with accusations that it was plagiarized. >> we want our children can to know. >> we want the children in this nation to know. >> that the only limit to the height of your achievements is the 2kr50e78s and the willingness to work hard for them. >> the only limit to your achievements is the strength of your dream and the willingness to work for them. >> there's more. >> you work hard for what you want in life. that your word is you bond. do you what you say you are going to. >> do you work hard for what you

want in life. that your word is your bond and you do what you say and keep your promise. >> that you treat people with dignity and respect. >> that you treat people with respect. >> the trumps woke up to this front page headline, thanks, mrs. obama. and today, the field day, the hashtag trending. and before the speech, melania told nbc she wrote it. >> i wrote it with as little help as possible. but today, the campaign says melania's team of writers took notes on her life inspirations and included fragments that reflected her own thinking in thach also placed the blame on hillary clinton. >> when hillary clinton is

threatened by a female, she takes aim. >> was it plagiarism? >> it's pretty much taken verbatim what mrs. obama said. >> we sat down with matt, a speech writer in the bush white house. what do you think went wrong? >> this is a process that is failed. these are not people who are seasoned political operatives in thap don't know how the process works. it's amateur operation. >> "world news tonight" anchor david muir spoke about it with donald trump jr. >> i saw common words in there. >> she did say she wrote the speech. >> what she said, she wrote adds much as she could. for a speech of this magnitude, i would have a hard time doing that, and i speak daily. it's very different.

>> hours later, donald trump jr. took the stage and delivered a very well received speech. >> we actually started to believe that solving our great problems is an impossible task. that's why we need to elect a man who has a track record of accomplishing the impossible. >> don jr., a father of five who works for his father in real estate, talked about policy and personal matters. >> growing up, my siblings and i were fortunate to have options that others don't have. we want all americans to have the same opportunities. >> a common complaint, that he is a racist, engaging black voters is now the job of this woman, omarosa is now the director of african-american outreach for the campaign. you may remember her from "the apprentice". >> i didn't come here to make friends.

>> what is your response to that? >> i don't just know him through headlines. i know donald trump's heart. i know him as a person. and i have to acknowledge that he is racial. when he talks about illegal immigrants and they're coming from different countries, that triggers racial reactions from people. he is talking about racial ins didn'ts but that does not make him a racist. i think we throw that term around way too loosely. >> we saw for ourselves how tough this reality star can be when she interrupted the interview. >> we are in the middle of an interview. >> interesting moment there. the special pizazz you see from people in the trump world. next up, we sit down with ivanka trump. what she says about her father's political salvos, and a sneak peek at the star wars stand

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>> donald trump made a joke, when he said he briefly considered picks his daughter ivanka for vice president. she is oumpb referred to his his secret weapon. her siblings say she is our father's favorite. and the series, being trump. >> this is a big moment. are you nervous? >> i am terrified. i'm excited. >> she's been called her

father's secret weapon. one of his best mosted advisers. now, donald trump's daughter ivanka is poised to take the spotlight, introducing him thursday night in cleveland. >> has dad given you any input on what he would like you to say? or he is leaving it up to you? >> he has left it up to me. i think he wants it to come from your heart. he said, don't worry. >> it was just over a year ago you announced your nature v father's presidential bid. >> it is my pleasure to introduce to you today a man who i have loved and respected. >> what has this year been like for new. >> it's almost impossible to describe to meet so many people to hear their enthusiasm for his candidacy. >> ivanka has never been shy about her love and admiration for her father and family. >> i'm absolutely proud to be a

trump and i'm proud of my family name and everything they have done and accomplished. >> this rare glimpse in her early life captured in "born rich" a documentary about the country's wealthiest families. >> we are on the 68th floor. not a bad few to wake up to. >> she group here, inside trump tower. the second oldest of the five trump kids, ivanka is no stranger to the spotlight. being a model and starting a julie and clothing and accessory line. >> you are setting a note that it's just about money. >> and being on "the apprentice," she is helping her father usher in american political. none of us have political experience. and here you are, on the national stage front and center.

one of his key advisers. >> i have strong opinions. i articulate those opinions. when asked. he raised me brothers to be the same. >> your brothers and you were were given the opportunity to talk to all of the vice presidential finalists, if you will. what were you looking for? >> we want fod ensure that personallies would be complimentary. that track record would be well suited. >> the next vice president of the united states, governor mike pence. >> did you and your brothers all agree? >> it was my father's decision. >> but you weighed in. >> we did weigh in. but it was my father's decision. >> ivanka's support is unwai unwavering. >> you have called women fat

pigs. >> only rosie o'donnell. >> have you changed the perception of him. >> people talk and talk about gender equality. but do they live it? my father has. he believes in equality economically, politically, socially. my father has empowered women, including me, his whole life. >> he had a tweet with the star of david. can you jewish, you converted. you can see why that ruffled feathers. >>? well, he clearly did not think that was the star of david. that was clearly not the intention. my father's track record of supporting and advocating for jewish people and israel is unimpeachable for a very long time. whether it being the grand

marshall of the israel day parade to the support he's offered my husband and pliself and our family as a young jewish couple. i know the person and his intent. and i think that was really rather ridiculous. >> i love the old days. >> hillary clinton has an ad out. have you seen it? >> i can stand in the middle of fifth avenue and shoot someone and i couldn't lose any voters. >> if your parent were to see that ad, what would you say to your children? >> i wouldn't have my children listening to those ads, the negative ads, especially those. and almost all of those are a complete manipulation of his words and packaged for maximum impact. despite what anyone will say, including the opposition, i know the man, enter so do my position. >> but his father is a possible target for more than just political enemies.

>> this young man had alleged by targetsing trump for a long time. >> a man trying to rush the stage. >> do you worry about his safety? >> i we live in scary times. i worry about the safety of my father. but i worry about the safety of every american including my children, myself, my family. >> what is the one thing you want us to hear in this historic moment about your father? >> i don't know that people appreciate his tremendous empathy and his warmth but they should. our country needs a president who is able to dream big. >> and we will make america great again. >> and my father will be able to do that. you know, very big and a very real way. >> what role do you see yourself playing in a trump white house? >> right now, i take things day by day. i'm not going to get ahead of myself. >> can you envision a life in washington?

>> i have to say. and right now, obviously, my focus is on being a good mother to my children. >> for "nightline," i'm lara spencer in new york. up next, the big reveal from the "star wars" universe. what we are learning about the b first stand alone movie "rogue one." whenoff the wheel to getands out of a tight spot. when you can relax with your foot off the brake and stay put. and when you enjoy 400 horsepower that's both smooth and controlled. that's the more human side of engineering. this is the lincoln summer invitation, hurry in now to your dealer for limited time offers! lease an mkc for $289 a month or get 0% apr for 60 months and just announced $1,000 dollars summer invitation bonus. introduces new, easy-to-swallow tablets.

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while the political word is focused on what's happening here in cleveland, "star wars" fans are freaking out for a different reason. here is clayton sandell. >> there is a rebellion, is it? >> it's the movie that is parting war in "star wars." rogue one is the first stand alone film. separate from the nine movie saga and the at convention in london this weekend, fans got a new sneak peek. the movie opens in december. it's about rebels on a mission to steal plans to the death

star. >> may the force be with us. >> reporter: the story takes place just before the original 1977 "star wars." one big reveal, darth vader is back. beyond that, total secrecy. >> we will get fired. >> i was doing face time with my son and i see the screen going wide. and i go, no! he took a picture of my costume. and i go, no! i made his mom go erase it. >> reporter: for a different stand alone film coming in 2018, we got meet the new hans solo. he beat it v out 3,000 actors. >> any other co-stars you screen tested with. >> chewbacca. i never interacted with