Pop sensation taylor swift. Hailing hero of the past. Lady gagas electrifying performance. Paying homage to music icon david bowie. But first the nightline 5. The bold nissan rogue witith intuitive allwheel drive. Because winter needs a hero. Now get a 189 per month lease on the 2016issan rogue. Nissan, innovation that excites. Just when you thought the race for president couldnt get any crazazier, we w escalations on several fronts today. From candidates crying liar, liar, essentially, to new threats of a lawsuit to a war of words between donald trump a the former president george w. Bush, who was out on the stump for his brother jeb tonight. And adding fuel to this inferno there is now an epic political battle looming after the sudden death of a Supreme Court justice, antonin scalia. George w. Bush reporter usually when former president s hit the campaign trail its a reasonably poe heat affair. H howre y you dog, thanks for your service. Reporter hours before george w. Bush went out to stump for his brother jeb in South Carolina, he got hit by a hurricane known as dononald. Trump. Are you ready . Yeah. The World Trade Center came down during his reign, so that was, you know its like he was the top. The World Trade Center came down. Reporter in response, w. But it was pretty obvious who he was talking about. It is not bluster. It is not theatrics. Real strength, strength of purpose, comes from integrity and character. And in my experience, the strongest person usually isnt the loudest one in the room. Reporter the former president also defended his handling of 9 11, talking about how he reacted when he learned, while reading to a group of schoolkids in florida, that a second plane had hit the towers. Y first reaction is i was hot. Were going to deal with these people. My second reaction, when i was staring at this young child, is that my job became crystal clear. And that is to protect her, her community, and her country. Reporter then jeb rose to speak. I thought it was a little strange that a frontrunning candidate would attack the president of the United States while he was buiuilding a Reality Tv Show reporter trump is fighting a multifront battle right now, with tminu five days until the South Carolina primary. Ted cruz is desperate. Unstable guy. Reporter aside from slamming the bushes he is also spewing venom at texas senator ted cruz. Single worst liar ive ever seen. The lword is not something you see thrown around much in politicscs. The fact that donald trump went from and has taken this to a personal level, this is no longer about policy, its about personality. Reporter for good measure, florida senator marco rubio is joining the liar pants on fire choir. Both men accuse cruz of distorting their records. Theres no other word for it but liar. I would note when marco rubio and donald trump scream liar, liar, liar, makes you wonder how they would handle dealing with putin. Reporter in the battle with cruz trump says hes willing to go past name calling to litigation. Because in my opinion, based o what ive learned the past two or three days, he doesnt even have the right to serve as president. Or en run as president. He was born in canada. The World Trade Center came down reporter as you absorb the mayhem in the republican race you probably are worse than jeb bush. Reporter consider that it is now playing out against the backdrop of what promises to be a historic battle set off by the sudden death of Supreme Court justice antonin scalilia over the weekend. I, antonin scacalia, do solemnly swear reporter scalia was the longestserving justice on the bencnch, appointed by Ronald Reagan in 1986. He was a pillar of conservative thought known for his biting dissents and his belief that ruling should be guided by the words of the constitution as it was drafted. Saturday morning, Justice Scalia was found dead inis room at this hunting ranch in texas. Reportedly of natural causes. Word of his sudden ssing hit washington, d. C. Like a thunderbolt. We are one justice away from losing our fundamental rights in this country. Scalias death throws a huge unknown factor into this campaign. It has the potential to scramble the entire racace for president. Reporter the constitution says the. Sitting president can nominate the next justice, which is what president obama says he will do. I plan to fulfill my Constitutional Responsibilities to nominate a successor in due time. Reporter but that successor needs to be confirmed by the u. S. Senate. Which is controlled by the republicans. And in an unprecedented ststatement st an hour after confirmation of scalias death, thee Senate Majority leader Mitch Mcconnell said he would block any obama nominee. The American People should have a voice in the selection of their next Supreme Court justice. Therefore, this vacancy suld not be filled until we have a democratic senator Elizabeth Warren making this counterpoint in a nowviral facebook post. Senator mcconnell is right that the americanan people should have a voice in the selection of the next Supreme Court justice. In fact, they did. When president obama won the 2012 election by 5 mlion votes. To have a lame duck president with a party thats the Opposition Party in the senate at the same time as you have this volatile, angry, raucous president ial campaign this confluence of factors has neverer happened before. Reporter with the makeup of the Supreme Court potetentially hanging in the balance, republican president ial candidates are pulling no punches. Senator ted cruz wasting no time releasing a new attack ad just yesterday asking south colina voters if they trust donald trump to choose a supre court justice. We cannot trust donald trump with these serious decisions. Reporter at the Republican Debate saturday night in South Carolina, just hours after the news of scalias death broke, a way to the candidates oneupping one another on who could talk toughest on stymieing the replacement. I do not believe the someone. Its called delay, delay, delay. Were not going to give up the u. S. Supreme court for a generation by allowing barack obama to make one more liberal appointee. Reporter meanwhile the democrats are vowing to put up a fight. Hillary clinton signaling shell make the republican effort to block president obamas nominee a campaign issue. Let me just make one point. Barack obama is president of the United States until january 20th, 2017. Reporter the burning question now, who might president obama nominate . 48yearold srinivasans name is at the top of many short lists. Three years ago his nomination as d. C. Circuit judge was unanimously confirm by the senate. He would be the first Supreme Court justice of south asian 63earold mericgarland is the chief judge of the d. C. Circuit, a widely respected merate whose name has been floated as a possible nominee before. Patricia millet, also the d. C. Circuit court. The eight remaining Supreme Court justices are scheduled to return from a break next week. They are facing a docket filled with controversial issues including abortion, discrepancy contraception, unions, voting rights, affirmative action. Scalias death means the court no longer has a tiebreaking court. If the eight remaining justices are split on a decision that means the lowercourt ruling will stand. D. The chief justice could also decide to put some of those cases that would be 44 cases over and have them reargued, presumably after theres a replacement for Justice Scalia in place. Reporter jusce scalias body was returned to virginia in the early hours of this morning. For now his body remains at this funeral home. No plans announced yet about his meanwhile the fate of his vacant seat still an open and seemingly infinitely contentious question. Next, taylor swift, lady gaga, adele, kendrick lamar, highlights from the grammys. The biggest night in music. We live in a pick and choose world. Choose, choose, choose. But at bedtime. Why settle for this . Enter sleep number and the ultimate sleep number event, going on now. Sleepiq q technolo tells you how well you slept and what adjustments you can make. You like the bed soft. Hes more hardcore. So yr sleep goes from good to great to wow only at a sleep number store, right now save 50 on the ultimate limited edition bed, plus 24month financing. Hurry, ends monday. Know better sleep with sleep number. If you have allergy congestion. To get relief, anything is fair game. Introducing rhinocort allergy spray from the makers of zyrtec. Powerful relief from nasal allergy symptoms, try new rhinocort allergy spray. Muddle no more covergirl makes flawless as easy as. One. Tru. Three. Now theres a gorgeous trublend face for each of us one new trublend primer it hides pores, preps and smooths skin two trublend makeup matches 99 of skin tones. Three new trublend blush and bronzer a baked blend to get you glowing find your trublend its easy as 1 tru 3 easy breezy beautiful covergirl. What happens when lobster gets grilled, baked, and paired with even more lobster . You get hungry. And yoyou count e seconds untitil d lobsters lobsterfest is like new dueling lobster tails th one tail stuffed with crab, and the other with langostino lobster macandcheese, its a party on a plate and you know every bite of lobster lovers dream lives up to its name. Hey, eating is believing. Taylor, adele, gaga, bieber. At the grammys tonight a cavalcade of musicians so famous they only need one name. Heres abcs Chris Connelly. Reporter from adeles epic all i ask to demi lovatos well hello. Hello is it me youre looking for reporter from triftsaylor swifts are we out of the woodsyet. To the multicultural wonders fr this opener from the Broadway Musical hamilton. In new york you can be a new man reporter by luck or design tonights 58th annual Grammy Awards came at a moment when music sits proudly at the head of the culture table. Thanks to beyonces formation video. And subsequent super bowl halftime performance. Steeped in black lives matter imagery and substance. And kanye wests by every means possible rollout for his newest featuring a Madison Square garden fashion show. A saturday night live performance. And a ezesque tweetstorm. Up to the second potential of popular song, much on the minds of those there. And when i wake up i recognize youre looking reporter so many of them fans of the rapper kendrick lamar. Whether he takes a trophy home or not, which im pretty sure he will, its a win for him regardless. I love the fact that thats what hes doing, hes promoting positive values. And encouraging unity. Bringing people together. Its not often that you get to hear an artist this authentic and this complete in his vision. And hes due. Definitely due, i hope he wins evidently. Reporter beloved from the streets to the oval office. Jumping off from his all right video with a galvanizing performance. And winning five gm meals. Including best rap album. Everything i know coming heavy thinking of love along ed sheeran won best song as what looms for a generationdefining track thinking out loud. If you had told an 11yearold, 5yearold, any age that i would have received an award from stevie wonder, i would be in shock. Thank you very much. Reporter the pop unicorn herself sporting a bangedup bob, picking up album of the year for 1989. Seg up an empowerment speech that featured shade thrown at 100 miles an hour in the direction of kanye west whose new record declares, i made that famous. Heroes of the past. Dont say maybe reporter eagles reuniting weeks after the passing of front man glenn frey playing take it easy with Jackson Browne in freys stead. Lady gaga who tattooed her torso shown on snapch, the carpet buzzing in anticipation. N. Why is she the right person you can just tell that she is such a big fan. Like its soso present in all her work. You know you tell she lives and breathes it. Did he give you a way of looking at the world that was difference for you . His ins influenza is in almost everything ive ever done. Repter technology allowing gaga to manipulate the colors and images upon her face. Commencing countdown engines on reporter bonnie raitt, long a friend and colleague of the la bb king, bluesing it up with chris stapleton. Chris stapleton asked for me specically to be part of this. Knowing i was good friends with b it was nice. I just have to not turn around and see those photos, it will make me too sad. Reporter old school sound via this hitmaker earned the best new artist grammy for meghan trainor. Though this tribute to hard rock legend lenny from motor head offered an unexpected new front whats it going to be like to look at 15 rows of wellknown musicians while youre singing . I wont be looking. My head ll be straight down. Yeah, no, i cant. I cant look. Id drop dead. Reporter the entire night a showcase for superstars who have thrived amid the seismic changes in the music business, in the age of digital and streaming. Adele is a fascinating star. Youve got these deep and dark and sort of lonely songs and shes so funny. And shes a very, very l likeable character. Reporter and a good thing too. Late reports and tweets commenting on technical issues at the top of her performance. Longtime American Idol producer Nigel Lythgoe tweeting, did adele show she is human . Was the television sharp . Rihanna took to twitter to explaiain her lastminute decision to cancel her performance teing fans, so sorry i saying shed been put on vocal rest for an infection. Whats not canceled the daytime and nighttime drama between taylor and kanye. One longrunning show to which anyone can buy a ticket. One that figures to play itself out t here in e days to come. Keeping up with kanye west can be a fulltime job, especially when heat i overdrive mode like hes been lately. Ive heard the album, i think its great. Reporter for nightline im Chris Connelly in los angeles. Next here, rembering an oftenunderappreciated part of Supreme CourtJustice Antonin Scalia, his sense of humor. The guy was really funny. With the power and performance of our intuitive allwheel drive. Now get a a 189 peronth lease on the 2016 nissan rogue. Wish your skin could bounce back like it used to . Neutrogena hydro boost water gel. With hyaluronic acid it plulumps sk cells with intense hydration and locks it in. For supple, hydred skin. Hydrboost. And finally tonight, Supreme CourtJustice Antonin Scalia who died over the weekend may have been best known for his fiery positions on hotbutton issues. But he was also damn funny. Abcs terry moran covovers the court for us. Reporter in so many of the pick does of Justice Antonin Scalia, hes laughing. He was a naturally funny man. Listen to him tell cnn in 2012 the secret of his marriage of more than 50 years. Maureen made it very clear early on that if we split up, i would get the children. Reporter scalia looked at life with a wry smile and a ready quip. And often his quips had a point. A sharp point. For instance, when the court upheld obamacare for the second time last year, scalia barbed his quip with scorn. We really should start calling wrote in his dissent. When he was asked about the bush versus gore decision that awarded the presidencyo george w. Bush preserve, protect, defend the constitution of the United States so help me god. Reporter scalia delivers a dismissive shock like this on 60 my opinions we did the right thing, so there. Get over it, its old byy now. Reporter scalias sense of humor stemmed from a mind never at rest. He loved word play as when he called the majoritys reasoning in the 2013 defense of mriage act case legalistic arglebargle and slammed the decision on the afaffordableare act jiggery pokery. Or this how can the federal government establish a state exchange . That is gobbledygook. Reporter in cases big and small, during oral arguments, he loved to get a laugh. One acadic study finding h the funniest justice with 1. 027 okay, you cant refuse your money or your life. But your life or your lifes . I could refuse that one. Reporter there was a warmth in the middle of scalias humor for all his combativeness. He had a gift for friendship. Most famouslyith Justice Ruth Bader ginsburg. We agree on a whole lot of stuff. We do. Ruth is bad only on the kneejerk stuff. Reporter when one of his many grand daughtersraduated from high school in 2015, scalia offered advice never compromise your principles unless, of course, your principles are adolf hitlers. In which case you would be well advised to compromise them as much as you can. Reporter a funny man. The court and the countntry wl be a dululler placwithout him. For nightline im terry moran in washington. Another side of a giant off the bench. Thank you, terry moran, for that report. Thank you for watching tonight. Morning and as always, were online 24 7 on our Nightline Facebook page and at abcnews. Com. The insider, counting down the biggest stories tracking today. Numb the Grammy Awards are and musics hottest couples are already a partying. Gwen and share some chrissie decide on baby names . And avril levignes relationship status gets complicated. And a Janet Jackson health updat next, before lady gaga hits the stage for tonights bowie tribute, she shows her for the star man permanent permanently. And i drop by Lionel Ritchies house just to say hello why hes d on the ceiling with tonights grammy award were with rising country start sam hunt. Its the biggest awards they give. Its bananas. But what did keltie say to turn sam red. Youre blushing, i got sam to blush. Now, hollywood from inside out, its the insider together with yahoo. Taylor, adele, justin, musics biggest night is here. Hey, everybody and welcome to the insider