you now that you been gone this is "nightline." >> tonight, down to the wire. on the eve of the new hampshire primary -- >> he's a total stiff, jeb bush. >> donald trump bashing a rival but also voicing a surprising lack of confidence. >> who knows what's going to happen? >> a once-surging marco rubio today criticized to his face by a voter. on the democratic side, bill clinton on the attack. >> vicious trolling -- >> >> plus -- >> being here today all makes for a very special 24 hours. >> fresh off his big win in super bowl 50, peyton manning heads to disneyland. but is this his land victory lap? would what do you i do if you can't afford the fireworks for chinese new year?

witness a beautiful but dangerous tradition. but first the "nightline 5." >> the nissan rogue with the power and performance of our intuitive all-wheel drive. get a $199 lease on the 2016 nissan rogue.

seconds. good evening. in just hours voters in new hampshire will start heading to

twist in what as been a truly unbelievable campaign. the candidates including a surprisingly modest donald trump were scrambling for votes. some of these hopefuls know they may not make it past tomorrow. abc's david wright is out on the trail tonight. >> this is now crunch time. >> reporter: it may be the first in the nation primary. >> vote for me tomorrow! >> reporter: new hampshire is also a last chance for some. >> donald trump organizes his campaign around disparaging people. >> reporter: this past week we've seen feuds, unexpected alliances, and attacks. >> vicious trolling. >> reporter: the music you almost expect to hear as the candidates crisscross the land. >> reporter: call it "game of thrones: new hampshire edition." an epic battle, live free or die. tune in this time tomorrow and there's sure to be blood on the floor. >> the time is here. >> reporter: saturday's abc news debate was the red wedding for

candidate. >> senator rubio. fiction that barack obama doesn't know what he's doing. he knows exactly what he's >> reporter: chris christie stuck in the shiv. >> i like marco rue i don't. he's a smart person and a good guy but he does not have the experience to be president of decisions. >> i think the experience is not just what you did but how it worked out. >> reporter: rubio fought back but listen closely. >> i would add this. that barack obama doesn't know what he's doing. he knows exactly what he's doing. country. >> reporter: the repetition of that well-practiced line was all christie needed to twist the knife. >> that's what washington, d.c. does. the drive-by shot at the beginning with incorrect and incomplete information. and then the memorized 25-second speech that is exactly what his advisers gave him. >> reporter: then astonishingly rubio repeated the line again. >> this notion that barack obama doesn't know what he's doing is just not true --

memorized 25-second speech. >> that's the reason why -- >> there it is, everybody. done. the following morning there were robots outside rubio's first event. >> what's your new talking point? >> our new talking point is points. >> reporter: some of the voters skeptical. >> i'm grateful to you for being here today. prepared. >> he's a young senator just like obama was. i'm not so sure he's ready. >> interesting. so something like this raises questions about his experience? >> yes, yes, it does. >> the one i thought did a great job was jeb bush. >> reporter: in salem -- >> thank you very much for coming. >> reporter: we caught up with governor bush. this hasn't been a great year for the house of bush. but he's hoping new hampshire will turn it around. >> your friend senator rubio has taken a lot of flack this morning for getting stuck in his talking points yesterday. is he only a sound bite geek? is that what it says? >> he is only sound bite deep in that debate.

he's a gifted speaker. but he doesn't have a proven record. >> welcome to wyndham. >> reporter: governor john kasich is do or die in the granite state. he can't afford to be an also-ran. he's got a spring in his step too. >> i'm counting on you to help me if i'm president of the united states. what do you think of that? >> reporter: and governor chris christie, he's in a great mood. >> good to see you. >> reporter: his town hall meeting at an exeter bowling alley and bar was packed. >> governor, any second thoughts about your treatment of marco rubio last night? >> second thoughts? what i would have done twice. >> reporter: christie, kasich, bush, rubio, they'd be happy with second place, even a not too distant third. no secret who's strongly expected to win, just look at this crowd. if you believe the polls, bernie sanders and donald trump, they've got this in the bag. but the big question out there,

yuge question, is whether the enthusiastic support that they've been able to draw to their rallies will actually translate into as opposed tos. >> i'm a volunteer for bernie sanders, are you planning to vote in the democratic primary tomorrow? >> reporter: the sanders campaign says it's prepared. >> we've got folks throughout all day just making hundreds and hundreds and hundreds of calls. >> what is this space? >> i think this used to be a dentist's office. >> reporter: julia florence is sanders' new hampshire campaign director. >> i was looking at 5:38, they show bernie sanders with a better than 99% chance of winning new hampshire. >> i will believe that on wednesday morning. i'll believe that wednesday morning. >> okay. >> we're trying very hard not to take anything for granted. >> reporter: some sanders supporters have taken electioneering to new places. in iowa some of his young supporters, presumably single, got suspended from tinder for urging prospective dates to

this weekend bernie sanders got a boost from "saturday night live." >> pretty -- pretty -- pretty -- pretty good. >> reporter: appearing alongside his comedy doppelganger larry david. >> i am so sick of the 1% getting this preferential treatment. >> i do not shake disgusting hands. >> reporter: he did a sketch featuring a bernie version of "bern your enthusiasm." >> you did some [ bleep ] -- >> i hope you all are going to vote tuesday, i hope i've earned your vote. >> reporter: the clinton campaign is pulling out all the stops. this weekend, hillary clinton was even out there knocking on doors herself. >> how are you? oh my goodness! >> reporter: the clintons have a long history here in new hampshire. >> i was a supporter of your husband and i'm a supporter. >> reporter: they not only keep lists of people who supported hillary in 2008, they're still in touch with folks who voted

now bill clinton is at time sounding angry. >> -- to defend hillary and explain, just explain, why they supported her, have been subject to vicious trolling. >> reporter: this weekend, former secretary of state madeline all bright named and shamed women voters who might be tempted to vote for sanders. >> just remember, there's a special place in hell for women who don't help each other. >> reporter: a thought that who do support sanders. >> does that make you feel guilty? >> not at all. i think that women support women that they want to support. hillary clinton? i absolutely do not. >> we still live in a country where it's a freedom of choice. i have been with bernie since the beginning. i feel he's going to do right by the retirees, i think he's going to do right by the kids. >> reporter: the first votes are now in. tomorrow there will be blood on the floor. a king may be crowned. a queen may be cut down to size

but there could also be plot twists. new heroes or villains. even a cliff hanger. as the 2016 "game of thrones" continues. i'm david wright for "nightline" in manchester. next, broncos qb peyton manning heads to disneyland to celebrate his big win at super bowl 50. what does he say about whether it's time to hang up the cleats? if you have moderate to severe rheumatoid arthritis like me... and you're talking to a rheumatologist about a biologic, this is humira. this is humira helping to relieve my pain and protect my joints from further damage. this is humira helping me reach for more. doctors have been prescribing humira for more than 10 years. humira works for many adults. it targets and helps to block a specific source of inflammation that contrubutes to ra symptoms. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections and cancers, including lymphoma,

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peyton manning took a victory lap at disneyland after becoming the oldest quarterback

now everybody's asking, has he played his last game? here's abc's chris connelly. >> reporter: on the day after, peyton manning went to disney land. >> the game, the celebration after, being here today, all makes for a very special 24 hours. >> reporter: the 24 hours that began a few hundred miles north in santa clara, california. at levi's stadium. you know, where beyonce was. >> reporter: peyton manning may be no stranger to electrifying performances. by his standards, super bowl 50 was not one of them. his broncos set a new low for fewest yards gained by a winning team. >> and it's ealey who gets to him. >> reporter: but so what? he's the oldest qulk estest quarterback ever to lead his team to super bowl victory.

newton's carolina panthers. but was that the last pass the 39-year-old manning will ever throw? speculation about peyton's retirement heating up after he spoke these words two weeks ago to patriots coach bill belichick. captured on showtime's "inside the nfl." >> hey, listen. this might be my last rodeo. >> reporter: was manning's second super bowl victory his last rodeo? or just the latest ride in a hall of fame career? >> i'll take some time to reflect. i got a couple of priorities first. i want to go kiss my wife and my kids. i want to go hug my family. i'm going to drink a lot of budweiser tonight. i promise you that. >> reporter: after the cheers and the beers, the good times still roll. man steerial on the field. on message off it. peyton manning has been pro football's plu-perfect ambassador, the nfl's great entertainer. >> there's always going to be consistency out of peyton manning.

about who he and is what he's done for the national football league. >> reporter: week after week for 18 seasons with the indianapolis colts and then with the broncos, orchestrating the thrilling moments that have sustained the sport's popularity. like the colts' super bowl 41 win in the rain. off the field a perennial pitchman. >> check out our new epic meats pizza. >> reporter: papa john. mastercard. do i really look like this >> reporter: singing for nationwide. >> i've always told players, certain players are stars in our league. we know who they are. but there's a unique few that are celebrities. peyton manning's a celebrity. he's bigger than a star. >> reporter: even crossing over on "saturday night live." showing a true performer's comic gifts. >> i'll kill a snitch. i'm not saying i have, i'm not saying i haven't. you know what i mean. >> the hilariously cynical

who idolized archie manning, a legendary qb. >> who's your favorite football player? >> my dad. >> growing up i had my hero in my house. >> reporter: the mannings on their way to becoming a beloved nfl football dynasty. >> are you going to be a football player when you grow up? >> uh-huh. >> the legacy of the manning family starts with their father, archie manning, who i played against when he was with the new orleans saints. he wasn't on a very good football team but he was an excellent quarterback. the apple doesn't fall far from the tree. i've always said this. good soup like character made at home. when you think about the manning family it starts with archie, his beautiful wife, how they raised their children. knowing that these guys are going to be maybe professional quarterbacks one time in their lifetime and they've done that. >> reporter: peyton would dominate at university of tennessee before becoming the number one overall pick of the 1998 nfl draft.

with his arm and his mind. his meticulous presnap routine earning him the nickname the sheriff. putting up huge numbers even as his teams sometimes fell short in the postseason. while younger brother eli manning won two super bowls of his own. peyton at last pulling even with his sibling, whose unusually dour demeanor set social media athe blaze with memes like, when your brother brings home a better report card than you. peyton's own high-flying career has hit the occasional air pocket, teased for his manning face during losses, and worse, his body taking a beating undergoing multiple surgeries in 2011 for what threatened to become a career-ending neck injury. >> the doctors and i have been in good constant communication and we're on the same page. everything they're saying is everything's right on point, everything looks good. i'll be cleared and ready to go. that's encouraging to me. >> reporter: and late last year, possible questions about that recovery. claims that an al jazeera documentary "the dark side: the

from a former employee and an indianapolis clinic. >> another time that i worked with peyton, him and his wife are coming after hours to get ivs and [ bleep ]. all the time we're sending growth hormone, all the time everywhere. >> reporter: manning vigorously hgh. >> i think i rotate between being angry, furious, but disgusted is really how i feel, sickened by it. >> have you ever used hgh or any performance-enhancing drugs? >> absolutely not. absolutely not. >> reporter: the al jazeera source would recant his statement in full. a rep for manning did confirm to "the washington post" that manning's wife ashley received a shipment of medication. the nfl says it is investigating. yet now as peyton ponders his next move his options abound. he remains the darling of corporate america, even giving papa john found irjohn schneider

he could play one more season. perhaps with the rams moving to los angeles. and in desperate need of hollywood star power. or with growing evidence over the toll football takes on the mines minds and bodies of those who plea it he could walk away into the arms of his family, pro football's preeminent passer going long for good. for "nightline" i'm chris connelly in los angeles. next, we are on a journey to a remote place where celebrating the chinese new year is stunning to look at but also very risky. [screaming]

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finally we're taking you to the other side of the planet to a party that is as beautiful as it is dangerous. here's abc's bob woodruff. >> reporter: in this remote corner of china, the night skylights up with a remarkable and unique kind of fireworks. few people in the world will ever get the chance to see them. these breath-taking and extreme pyrotechnic displays that welcome in the lunar new year are made by brave blacksmiths hurling molten iron against a cold wall, causing sparks to rain down. when we travel to the village, celebrations were already under way.

beijing. the name means "warm springs." and you can tell, whoo, this is really cold. this is one of the blacksmiths who puts on the main attraction. >> how long does it take you to learn how to do that? >> reporter: first they melt the metal. in 2,900-degree heat. the warmest place in the entire region. during the performance the men are only protected by a sheepskin vest and a wide-brim hat.

to just throw this burning metal up in the sky like that? do you ever get worried about it? >> reporter: that fire from the centuries-old tradition still illuminate the entire town. this is the most beautiful kind of firework in the world? for "nightline," i'm bob woodruff. >> thank you, bob. we should say bob's story was an abc news digital feature. see more like it by downloading the abc news app. thank you for watching "nightline" tonight. tune into gma first thing in the morning. as always we are online 24/7 on our "nightline" facebook page and at abcnews.com.

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