another gold in the 800-meter freestyle. you could feel the joy as she high-fived teammate 15-year-old. swimmer at the olympics. fun to see her kick off her olympic career, and i know that she has a very bright future ahead of her as well. reporter: team u.s.a. is now focused on gymnastics, where simone biles decided not to participate in the individual vault and uneven bars. that means mykayla skinner gets another chance to compete. now the u.s. is counting on her performance in vault. sunisa lee is set to represent the u.s. on uneven bars. we spoke with biles former coach, amy borman. she says when a gymnast has the twisties, where your mind and your body are not aligning, a decision to compete really is day by day. biles could still compete in beam and floor, but has not made a public decision just yet. adriana. diaz: all right, we ll be watching. jamie yuccas, thank you. here at home, millions felt the heat today across the south.
reporter: simone started gymnastics at the age of 6 and caught the eye of coach amy borman. what do you want people who are now on the simone train to know about this young girl? the light that they see coming out of her is genuine. in all aspects. her talents, her energy, her personality. all genuine. reporter: and you can t miss that giant smile. but it is not always fun and games. she trains six days a week, 32 hours or more and counts family as her biggest source of strength. how important are they to you fulfilling your olympic dream? it means the world to me to have them by my side and i think it would just be one of my dreams come true and i think for them to see that happen for me i think they would just be so happy. reporter: her message to young gymnasts it shall. just never give up. once you set your mind to it and
lard. all of this will impact the 2016 presidential race and new numbers this morning showing one republican tied with hillary clinton. let s get to it right now. chris jantzen, and good morning to all of you. mark, let me begin with you. let s look at the numbers. the hypothetical matchups between clinton and republicans. jose, we released new national polls last night, looking ahead. a year out to hypothetical general election matchups. it shows that hillary clinton is tied with ben carson at 47-47. but hillary clinton is topping the other republicans in the contest. she beats donald trump by 8 points. she s ahead of jeb bush by four points and marco rubio by three points. that is kind of a snapshot. it s worth note thag polls at this point in time aren t usually the best predictor of who wins a national race. that s what our nbc wall street journal polls say. our new quinnipiac numbers show that hillary clinton is trailing all the republicans, including ben carson by t