Reporter donald trump says his proposal is about keeping the country safe and not about religion. Are you a bigot . Not at all, probably the least of anybody youve ever met. Because . Because im not. Im a person that has common sense. Im a smart person. I know how to run things. Reporter but republicans fear a trump nomination could alienate minority and women voters the party has been trying to reach since its 2012 president ial election loss. I think trump should quit. Reporter Illinois Republican adam kinzinger, who backs jeb, fears trump would hurt other gop candidates. It could easily cost republicans at least the majority in the senate and some seats in the house. Reporter but republicans disagree on how to defeat trump. Wisconsin Governor Scott walker, who dropped out of the president ial race in september, said other candidates need to follow his lead to consolidate the antitrump vote. I have signed the pledge. Reporter in september trump signed a loyalty pledge to the gop, but today threatened to rip it up, renewing republican fears that he could take support away from the eventual nominee by running as a third party candidate. If i dont get treated fairly, i would certainly consider that. Reporter there are no signs republicans still in the race will quit, and most have said they will back trump if he is the nominee. Scott, Top Republicans tell us they are waiting for the so called trump problem to solve itself, but they have no idea how or when that solution will come. Major garrett, thanks. Trump was trumped today by german chancellor angela merkel. Time chose her over him as person of the year. Time praised merkels moral leadership, but trump responded saying shes ruining germany. Protesters filled the streets of chicago today, rejecting mayor Rahm Emanuels apology for the Fatal Police Shooting of 17 yearold laquan mcdonald. An officer was charged with that murder more than a year after the shooting. Dean reynolds is in chicago. Reporter with protesters clogging Downtown Chicago and calling for his resignation, the embattled, emotional and contrite mayor stood before the city council and offered a remedy to the turmoil that is gripping his city. We need a painful but honest reckoning of what went wrong. Calm down, sir reporter outrage has grown since the release of Police Dash Cam video showing a white policemen shooting a black teenager 16 times. Releases of other Police Killings have reawakened historic complaints of police brutality. Demonstrator rosemary vega. Getting rahm to resign doesnt mean our work is over. Getting rahm to resign means our work is just getting started. Reporter emanuels administration fought the release of these videos. Now he says, that was wrong. Every day we held on to the video, contributed to the publics distrust. And that needs to change. Reporter but the problems go deeper here, and emanuel touched on a root cause when he recalled being asked a question recently by a young black man. He said, do you think the police would ever treat you the way they treat me . And the answer is no. And that is wrong. And that has to change in this city. That has to come to an end, and end now reporter now the mayor says he wont resign, and the protesters out on the street tonight say they wont quit until he does. Scott, its a test of wills with no middle ground. Dean reynolds, thanks. A new study finds that americas middle class is not only struggling but it is shrinking. And storms in the northwest turn we are in the age of ageless. Age neutral. Age defiant. Age agnostic. Olay is a purveyor of ageless. Only the best 1 of ingredients make it into our products. For transformed skin without expensive brands or procedures. Its the ultimate beauty victory. Nobody has any idea how old you are. With olay, you age less. 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Kate adds finish jetdry with five power actions that dry dishes and prevent spots and film, so all thats left is the shine. For better results, use finish jetdry. Today, a new study grabbed our attention. The middle class is no longer the majority in america. In 1971, 61 were considered middle class. Now thats down to 50 . Anthony mason tells us why. Reporter meredith riley, a 37yearold social worker in new jersey, used to think of herself as middle class. It was the good life. It really was. It was wonderful. And now if i dont go to work, i dont get paid. Reporter her county job, which paid about 50,000 a year, was eliminated in the recession. A single mother of two, riley now works three parttime jobs and makes less money. I think the toughest part is not preparing a future for my children that my parents prepared for me. Reporter barely half of adults are middle income earners, defined as a household making between 42,000 and 126,000 annually. The percentage has been falling steadily since 1971. As the middle class has hollowed ut, the upper income bracket has grown from 14 to 21 of americans. That upper class takes home of nearly after of all annual income in the u. S. , 49 , up from 29 in 1970. Its not that middle americans are worse off, its theyre falling behind relative to upper income adults. Reporter the lowerincome tier has also grown from 16 to 20 since 1970. Meredith reillys been among them since she was laid off. She has a College Degree and a masters, but little hope. I just dont feel like the jobs are out there, that are going to put me back to where i was. Reporter the pew study found the Great Recession hit the middle class especially hard, scott. Their median wealth fell by 28 between 2001 and 2013. Anthony mason, thank you, anthony. Some of the best seats in baseball are the most dangerous. A new plan to keep fans safe, next. Parts of the Pacific Northwest are already over their typical rainfall totals for december. More than a foot of rain has set off mudslides in portland. A woman was killed when a tree fell on her home. In western washington, seven Homeless People were rescued after they were swept into a river. Major League Baseball called today for more protective netting. Fans have been hurt by line drive fouls, one in boston in june, another in detroit in september. The recommendation is for nets to extend 70 feet on each side of home plate to protect fans in the field level seats. This one is for the boomers 50 years ago tonight in the days of black and white, the announcer told kids that the munsters was being preempted by something special. Cbs presents this program in color. Christmas time is here a Charlie Brown christmas was an instant hit. 30 million saw it and it became a classic. Thats what christmas is all about, Charlie Brown. Well, snoopy would be interested in our final story. A whole new answer to where beagles come from. Next. ,,,,,,,, as promised, we end with a medical breakthrough. A new way to make puppies. Jim axelrod now, with a manbreedsdog story. Reporter in upstate new york, alex travis is walking his two colorfully named beagles, red and green. You guys are so cute. Reporter but these are no ordinary dogs, and hes no ordinary dogwalker. Travis is a researcher at Cornell Universitys vet school, and red and green are two of the firstever test tube puppies. The litter came from three separate moms who gave the eggs and two separate dads. Reporter in vitro fertilization, fertilizing an egg with a sperm in a lab, then implanting the embryo in a surrogate, has been around for humans since the late 1970s. But researchers like travis only recently figured out how to make it work with canines. Dog reproduction is different than almost every other mammal. So this we think will have a lot of applications in veterinary medicine for animals that are valuable working dogs or show dogs or just animals that people love and want to breed. Reporter its not just genetic lines like best in show that could benefit, but entire breeds like collies known for eye problems, dalmatians prone to urinary stones and golden retrievers susceptible to certain cancers could be helped. We can use new technologies in gene editing, and we can use that to try to fix those defects and prevent the disease before it even starts. Reporter red and green were among seven ivf puppies born this past july. Travis loves what his research has brought into his life. I love them very much. They just need a little more house breaking, though. Reporter though some traits, even science might find a challenge to correct. Jim axelrod, cbs news, new york. And thats the overnight news for this thursday. For some of you, the news continues. For others, check back with us a little later for the morning news and cbs this morning. From the Broadcast Center in new york city, im scott pelley. This is the cbs overnight news. Welcome to the overnight news. Im don dahler. Donald trumps proposal to ban all muslims from entering the United States has sparked outrage, both at home and abroad. But perhaps the hottest firestorm of controversy is raging in israel. The gop president ial frontrunner plans to visit israel after christmas as a guest of Prime Minister benjamin netanyahu. Many israeli politicians are up in arms, demanding trump be barred from the country, nearly a third signed a letter to netanyahu demanding that he refuse to visit with trump. Netanyahu insists he doesnt agree with trumps proposal but as an american president ial candidate, hes welcome in israel. Major garrett has more. Reporter for once, the Republican Party thought its Worst Nightmare was a donald Trump Third Party run, but after watching him ignore the constitution and draw withering criticism from the right, the left, and around the world for suggesting that america ban muslims, the gop is discovering having trump in the party can be a nightmare, too. Donald trump defended what many in his Party Consider indensable. Do you regret your ban on muslims, which some people think is unamerican. Not at all. We have to do the right thing. Somebody has to say whats right. Are you a bigot . Not at all. Reporter the Top Republicans in congress who avoid commenting on the president ial campaign, came down hard on trump. This is not conservatism. What was proposed yesterday is not what this party stands for and more importantly, its not what this country stands for. This suggestion is completely and totally inconsistent with american values. Reporter ben carson and marco rubio joined the chorus. We do not discriminate on people based on religion. Thats constitutional, thats in the first amendment. I would say that or a religious test would violate the constitution. Reporter ted cruz, who is now surging in iowa, refused to say if trumps plan violated the constitution. I disagree with that proposal. I like donald trump. A lot of our friends here have encouraged me to criticize and attack donald trump. Im not interested in doing so. Reporter jeb bush was asked to promise not to back trump if he became the nominee. I can guaranty donald trump is not going to be the nominee. The question now is about the rest of the Republican Party. Reporter republicans in congress say they will vote for trump if he becomes the gop nominee. In an interview with bloomberg, joe biden called trumps ideas a dangerous brew and if he is the nominee, Hillary Clinton wins in a walk. Investigators say the husband and wife killers quhinld the San Bernardino massacre had been talking about staging an attack for two years. The pair war radicalized before they met and before the wife was allowed into the country. Carter evans has the latest. Reporter Authorities Say both shooters pledged their allegiance to isis, and cbs news has learned that farook took out a large loan and that the couple may have planned to use that to support the daughter they would leave behind. Before killing 14 people at a Holiday Party last week, syed farook received a 28,500 loan, and investigators are trying to follow the money. Theyre also questioning enrique marquez, a longtime friend of farook who purchased the assault rifles used in the attack. His family had no comment tuesday. Its unclear if farooks mother knew about the pending attack. Last week fbi agents seized several items after searching their black lexus, including targets from the gun range their son visiting. For the first time were getting a look inside the room where the two shooters opened fire. This photo shows julie swan receiving an award just before the attack. She was shot twice in the pelvis, but survived. And now more than a dozen First Responders are sharing their stories. I dont feel like a hero whatsoever. Reporter detect jorge lozano was captured on video leading survivors to safety. There was a female with an 8yearold boy that was terrified and i said what i said. Ill take the bullet before you, thats for damn sure. Reporter did you feel exposed . Like when you opened that door the shooter would be on the other end . Yes, sir. Reporter nicholas was shot in the thigh in the final confrontation with the killers. He left his vehicle to pull another officer to safety. When i was hit, the man was already down on the street. So i did not know who was in the back of that car shooting at us, but i could hear rifle fire coming out of that car. Reporter you know that was tashfeen firing at you . I do now. Reporter two of the buildings are going to remain closed at least through the end of the year. The build bring the attack took place is going to remain closed indefinitely. Another chipolte restaurant has been linked to an outbreak of food born illness. This one year Boston College. Reporter we are roughly a mile from campus in a local shopping area, and this restaurant is very popular with students. But Boston CollegeOfficials Say in recent days, some 80 students have come to the Schools HealthServices Depth complaining of illness, and all said they ate here over the weekend. Boston college says students showed up by the dozens at a Campus Health center this week to say theyre sick, including several members of the Mens Basketball Team who said they had eaten here. You never think about it. You just go and want to get food on the weekend. Reporter she ate there saturday and ive been having stomach problems. Its not that bad. Reporter students suffered symptoms, including vomiting and diarrhea. The Boston Public HealthCommission Says lab results indicate norovirus. City inspectors closed the restaurant, temporarily, citing it for three violations. The news comes just six weeks after an e. Coli outbreak. Chipolte closed 43 runlts in the northwest. 52 cases of e ko. Coli were reported in nine states. The company said there are no confirmed cases of e. Coli connected to chipolte in massachusetts. They told us all employees returning will be tested for the norovirus and point out this restaurant passed recent insp im lucky to get through a shift without a disaster. My bargain detergent couldnt keep up. So i switched to tide pods. Theyre super concentrated so i get a better clean. 15 cleaning ingredients or 90 . Dont pay for water, pay for clean. Thats my tide. Not everyone was shot when former singer Scott Weiland was found dead. He had a long history of drug abuse and his family does not want fans to glorify his passing. Anthony mason reports. Reporter the medical examiner has yet to release a cause of death, but cocaine was found in the bedroom where his body was found. His addiction problems were well known, and now an essay written by his second wife, with help from their two children, reveals the devastating toll it took on his family. Addiction and loss were common themes in Scott Weilands music. The video for fall to pieces actually depicts him overdosing on heroin. Drugs helped break up his turbulent 7year marriage, with whom he had two children, noah 15, and lucy, 13. Writing in rolling stone, weiland often forgot his own lyrics. She add, the truth is, like so many other kids, they lost their father years ago. He rose to fame as the lead singer for 90s grunge band stone temple pilots. He became estranged from his kids when he remarried in 2013. They were not invited to his wedding. Child support checks oftener in arrived, forceburg wrote. They have never set foot into his house and they cant remember the last time they saw him on a fathers day. This is a sad and awful thing to hear thats how his exwife and children saw him, because no one had a sense of how bad that was. Reporter forceburg hopes his death will spur parents to pay more attention to t