g for a hit. and the virginia tech student accused in the deathth of a 13-year-old girl. his friend also under arrest. and the jet, making an emergency landing. good evening, as we come on the air tonight, the candidas are all over this state. 24 hours before the iowa caucuses. the race on both sides, too close to predict. hillary clinton with a slight lead over sanders. but his crowds large and fired up here. we start with a new poll on the republican side, showing trump taking the lead back from ted cruz. marco rubio in third.

after skipping the final debate before iowa. ted cruz, making news because of a continueroversial voter mailing. here's jon karl. >> reporter: tonight in iowa, trump and his family trying to close t their biggest deal of all. >> he will be unbelievable. the best deal maker, the best master negotiator. >> reporter: shaking hands, signing autographs, holding babies. an alout push to turn poll numbers into real votes. >> i don't care if you have a 104 temperature, you can't leave. you will not be able to make it. get out of bed and caus. reporter: the man that wants to win iowa, his wife by his side. how do you close this deal?

we've done well in iowa, the evangelicals, the tea party. i think we'll have a good result. iowa is a very special place. >> reporter: the whole trump family involved. ivanka, with this how to caucus video. that's it. very exciting. >> reporter: and trump's sons, dad. trump in church today, r receiving a blessing from the pastor. ted cruz, also attending church. did you pray for victory? >> i prayed for god's will to be done. >> reporter: did you pray for trump and rubio? >> i actually did. i asked that god's blessing,

>> a a lot of people say cruz can'tt runner for the election. >> reporter: and rubio, casting cruz as the favori. >> ted cruz is clearly the front runner. 10,000 volunteers, spent millions of dollars. >> reporter: rubio, hoping for a cruz crash. and leaving iowa voters with this promise. >> i will never embarrass you. >> and tom lmas with us live in iowa. you were there with melania trump, did she seem eager for whatill come? and also, sarah palin also there? >> yes, melania is very excited, and thinks tomorrow will be great. the entire family will stay in iowa. and palin will be with trump tomorrow.

confident but anxious. hisuote to me, very few people have won the iowa caucuses. david? >> tom llamas tonight. tom, thank you. now to the democratic icic side, and hillary clinton bringing in bill clinton and chelsea, too. the newest poll has clinton at 45%, sanders at 42%. a statistical tie. warmer words toward sanders, and appearing confident. but the sanders team, raising more than $20 million in juary alone. cecilia vega tonight on the battle between the two for the best ground gameere in iowa. >> stick with me. stick with a plan.

>> reporter: 4 hour24 hours to go, and hillary clinton is counting down. >> please join me and welcoming, i hope,ur next president, my mom. >> reporter: the entire family center stage this weekend. >> thank you bill. thank you, chelsea. people need to feel the deck is not stacked against them. >> reporter: tonight, hillary feeling the love. and packing in the crowds. this is just the line to get inside to see hillary clinton. look how far back it stretcs. today, traveling more than 300 miles in iowa sanders, clocking in nearly 200. but today, sders is confident. >> love you, too. >> reporter: on the stump, a message of unity. this land is your land this

>> reporter: but in the final hours, the vermont senator on the attack. >> dismantle health care? i've spent my life fighting for universal health care for every man, woman and child. >> reporter: and clinton, still reeling from the revelation that 22 e-mails from her private server havee been deemed top secret. saying it's a dirty trick. >> i have to point out the timing and some of the leaks are concerning. i just want the matter resolved. >> hillary clinton knows what this is like. eight years ago here, on the night before her iowa loss. they're taking no chances, actually rehearsing turnout? >> yes, and not only that.

hand-written notes. and sanders volunteers knocking on thousands of doors as well. >> a lot of work o both sides. thank you. so, how do you get first-time voters out to caucus? and how do you get undecided voters? hehere's joncarl. >> reporter: one of the many hillary clinton office in iowa. it's boots on the ground time in iowa. these hihillary voeeeers are armed with detailed information on every door they knock. >> sometim they've switcd to trump. how is that possible? >> repter: we're at rubio supporters, calling them to make sure they know where to goo to caucus. >> sergeant bluff community center. >> reporter: this volunteer is a student at iowa state.

over again. are they okay with that? >> sometimes they do say, this is the third time you've called. >> donald trump? new york values. clinton and bush. two names from the past. >> reporter: and then there's the junk ml. some reffed this, election alert. underneath, the person's voting score, whether they've voted in recent elections. caucus on monday to improve your score, it says. warning of a follow-up notice after the event. from the cruz campaign. over at this diner, these folks are still truly undecided.

i don't know. tomorrow. jon, as you know, the biggest prize tomorrow nht could be the first-time voters that have never voted before. to do it. >> that's riright. both are counting on a big turnout on the never caucused before voters. will win. "good morning america" will be live from iowa tomorrow. and i'll be here tomorrow night from iowa. and the next big debate, after hampshire. join martha raddatz and me, next abc.

into the iowa caucus, the weather weather weather. trees down in southern california, and the pacific highway shut down because of flooding. six inches in reno and counting. and it will hit here right after the caucuses are wrapped up. let's hope. in the meantime, we tur to a d disturbincase making national headlines this sunday. breaking developments in a murder investigation, a virginia tech student arrested, and his friend, too. here's eva pilgrim. >> reporter: tonight, two virginia tech students under arrest. >> late saturday ght,t, thehe

eisenhower, a virginia tech student. >> reporter: saying he knew the victim, and allegedly knew the gi. a second student, charged as an accessory, helping him to get rid of the body. more than 1,000 volunteers searched. she had a liver transplant and needed daily medication. >> i didn't think that would happen to her. >> reporter: saturday, her body was found. tonight, both suspects being held witut bail. >> thank you. to california tonight, and

the f fugitivesonsidered armed and dangerous. authorities saying they got help from a woman in the jail. but it would appear their help has run out. here's matt gutman. >> reporter: they were hauled back in through the front door. >> we're actively investigating over suspects that may have helped. >> reporter: it was a citizen that helped with the capture of nayeri. nine days agago, they hacked a doggie door i this great. and then rappelled off the roof.

google images helping. and also sent mushy love notes to nayeri. the three are being held in a different section off the maximum security jail, but separately this time. davi >> matt, our thanks to you. around t the world, new concerns over the spread ofhe zika virus. the world health organization holding a meeting tomorrow. it's s spread bymosquitos. the number of infected people growing. here in the united states, 37 cases in 12 states. now to an emergency landing for a jet. a passenger shot this video of the jet dumping fuel.

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focussed on the hawkeye state, it's showtime. buzz that doesn't mean there there's not some fun beforehand. here's david wright. >> reporter: it's the greatest show on earth. hello sioux city >> reporter: taking potshots at ducks. >> ted cruz is myan. musical. they're always on my channel >> reporter: starting with meat on a stick at the state fair, and coming down to the pizza ranch strategy. and every four years, a bumper crop o candidates.

david wright, abc news, des moines. >> thank you for watching tonight.

right back here tomorrow night..james/wx wall blizzard watch will take effect late monday night and last through late tuesday night for portions of iowa. caucus monday should be dry and quiet during the daytime hours. temperatures will be mild as well in upper 30s. monday night after 6pm in southern iowa and closer to midnight in the metro, the winter snow storm should by knocking on our door. we should start with a little rain/snow mix, then light snow overnight. 1-2" possible by morning. the snow will last through the day on tuesday, tuesday night, and wrap up wednesday morning. there will be strong winds associated with the moderate to heavy snowfall reducing visibility to near whiteout conditions at times in parts of the state. currently, many areas in the state, can expect over a half foot of snow. areas of western iowa could be in store for 8-12" of snow when its all over. beyond the early week winter storm, central iowa dries out while temperatures tumble into the single digits at night and teens and 20s for daytime highs. enjoy your sunday evening! local 5 meteorologist james peterson nikki also coming up