Turned over today. The deadline looms as pressure mounts on President Trump to drop his wiretapping claim against president obama or prove it. Heres errol barnett. The president has one of two choices, either retract or to provide the information that the American People deserve. Reporter republican senator john mccain today said he has no reason to believe President Trumps claim of being wiretapped. I hope we get to the bottom of all these matters. Reporter Republican SenateIntelligence Committee member, tom cotton said he has seen no supporting evidence, neither has the ranking democrat on the house Intelligence Committee. Either the president quite deliberately for some reason made up this charge or perhaps more disturbing the president really believes this. Reporter last weekend, President Trump tweeted that president obama ordered surveillance of trump tower during the election. He offered no evidence or further explanation. No, i said im not aware and im not aware. Reporter press Secretary Sean Spicer struggled to clarify if the surveillance occurred because mr. Trump was already part of investigations into russia. Thats why we want the house and senate to do what the president has asked of them to look into this. Reporter house members are asking the Justice Department to turn over any evidence of wiretapping by monday. President obamas director of National Intelligence has disputed the president s claim. There was no such wiretap activity mounted against the president elect. Reporter President Trump has asked congress to investigate his wiretapping accusations against president obama, while congress is still waiting for any supporting evidence from the white house. Meanwhile, fbi director james comey is scheduled to testify before the House Committee on this matter one week from tomorrow. Errol barnett, thanks. Tomorrow, the Congressional Budget Office a nonpartisan agency of economists is expected to release its report on the American Health care act the republican plan to repeal and replace obamacare. The report will outline the cost and impact of the bill. The reignited Health Care Debate was a hot topic on the sunday morning programs. House Speaker Paul Ryan weighed in on face the nation with john dickerson. The one thing im certain will happen is cbo will say, well, gosh, not as many people will get coverage. You know why . Because this isnt a government mandate. This is not the government makes you buy what we say you should buy and therefore the government thinks youre all going to buy it. So theres no way you can compete with on paper a government mandate with coverage. What we are trying to achieve here is bringing down the cost of care, bringing down the cost of care, bringing down the cost of insurance, thought through government mandates and monopolies but by having more choice and competition. John dickerson is with us now from washington. So john, the Congressional Budget Offices assessment of the plan, as you know, is expected on monday. Now if it predicts that millions will lose coverage what are the arguments that we will likely hear from those republicans who backed this bill . Well, heres why thats such a problem. President trump said more people will be covered than are currently covered. White house adviser Kellyanne Conway said everybody who is covered by the Affordable Care act will be covered. This has been the consistent message from the president. Leaving aside the promises the president also made about quality and choice which are quite robust promises. So thats why this is a big hurdle if cbo comes out and makes this judgment. If this legislation fails what is the potential political fallout for the white house as well as Congressional Republicans . Well, if it fails completely and there is no replacement for the Affordable Care act, the president has said that would be a bloodbath. And paul ryan on the broadcast today affirmed that. So that would be the big disaster. The interim situation would be what happens often in legislation which is it fails, and then people cobble together a solution and try to run up the hill one more time. The challenge here is that the republicans are operating within their own space and are not picking up any democrats and not appealing to them. John dickerson in washington, john thank you. The california man who hopped the white house fence and tried to pay a midnight visit to President Trump over the weekend is due in federal court tomorrow. Demarco morgan has the latest. Reporter family members told reporters Jonathan Tran was troubled after being laid off from a job at an engineering company. He had been stressed out, living is in his car, eating junk food. The 26yearold from milpitas, california, graduated from San Jose State University in 2015. In u. S. District court saturday afternoon, tran was charged with entering restricted grounds while carrying a dangerous weapon. According to the criminal complaint, just before midnight friday, a secret Service Agent intercepted tran as he was approaching the south portico entrance to the white house mansion. Tran told the agent, i am a friend of the president. I have an appointment. But he admitted, i jumped the fence. Tran was carrying two cans of mace, a United States passport, a book written by President Trump, and a letter to President Trump that mentioned russian hackers. On saturday, President Trump praised the secet service. The secret service did a fantastic job. It was a troubled person. It was very sad. Reporter during the Obama Administration several white house intruders prompted plans for the perimeter fence to be strengthened and raised. Sharp spikes were installed as an interim solution. Hes due in court on monday. He could be facing a sentence of ten years in prison. We should also mention that the former secret service head Joseph Clancy retired earlier this month and has yet to be replaced. Demarco, thanks. For millions of americans, the last week of winter will get off to a snowy start. Storms are expected from the Northern Plains to the ohio valley monday. Meanwhile, the northeast is bracing for possible blizzard conditions monday, and tuesday expect travel delays. Across the country, in washington state, an avalanche left a group of students on a school trip snowed in. Mireya villarreal has the story. Reporter this pile of snow, at least 30 feet high and 150 feet wide, is blocking the only way in or out of the north cascades institutes environmental learning center. Were trapped reporter korrena standley is one of the 42 students on a field trip from Henry Jackson high school trapped. After reassuring their parents that theyre okay, her classmates took to social media, describing their unexpected adventure, like only High Schoolers can. Were just trying to have fun and make light of it. Reporter teacher meghan emery says the inconvenience turned into an important lesson on the environment. They were supposed to go home on friday, but this road block will keep them here at least until monday. For now, theyre making the best of their unusual snow day. This is todd hardy. A fitness buff, youth baseball coachand lung cancer patient. The day i got the diagnosis, i was just shocked. The surgeon in dallas said i needed to have the top left lobe of my lung removed. I wanted to know what my other options were. And i found that at Cancer Treatment centers of america. At ctca, our experts examine a variety of therapies, treatments and technologies to identify a plan specifically for each patient. My doctor understood that who i am was just as important as what cancer i had. We talked about options. My doctor told me about a robotic surgery that was less invasive. We have Excellent Technology that allow us to perform very specialized procedures for patients who have lung disease. At ctca, its all about what you can do. I feel fantastic now. Exploring Treatment Options is at the heart of how we fight cancer. The evolution of cancer care is here. Learn more about our Treatment Options at cancercenter. Com lung. Appointments available now. Iraqi troops, backed by the u. S. Military, are tightening the noose around isis in the city of mosul. Holly williams is covering the battle. Reporter isis fighters snipe at iraqi forces pushing into mosuls old city. One of the extremists last strongholds. [ explosions ] 350 yards from the frontline this week, we were with general al jaberi, as he called in helicopter gunships. Targeting an isis position where they were burning tires to try to hide their location. We are going to move a lot. We are going to fight isis house to house. But we put a safe sector for the civilians if they want to come to us. Reporter bearing a victorious mood on the frontline, and its easy to understand why. Nearly three years ago, isis swept triumphantly across northern iraq, as many iraqi soldiers ran away, rather than putting up a fight. The extremists captured mosul with ease. A gang of violent fanatics who claim to have established a new Islamic State. Now iraqi forces have regrouped and isis have been beaten back. Some iraqi commanders told us theyll retake the entire city within weeks. They already have isis surrounded in mosul and theyre pummeling the extremists. [ explosions ] but this is the cost of liberation. Down the street the main government building. Reporter a city smashed beyond recognition, its people frightened and exhausted. They survived more than two years under isis, only to see their neighborhoods turned into battlefields. God bless you, said this woman to the troops. Its been a horrible week. On this street, theyve defused a roadside bomb. A parting gift from the extremists. Mosul will soon be free of isis, but they have left the city and its people with deep scars. Holly williams, cbs news mosul. The recent murders of three transgender women in louisiana are not linked but their deaths are part of a disturbing trend. Don champion looked into this. Reporter the fear is real in new orleans for transwomen, like ammani dupree. Ive been frightened but not like this before. Reporter last month, her close friend, chyna gibson and sierra michelvy were murdered within a week of each other. A week earlier, Jaquarrius Holland was killed in another louisiana town. All of the victims, trans women of color. What scares me the most is that people will feel like they can get away with these things and nothing will be done about it. Reporter while the three murders here in louisiana arent connected, they highlight an alarming trend. Seven trans women have been killed already this year. Last year a record 23 were killed, the majority black and latino women. Beverly tillery at the new york city antiviolence project tracks these cases and feels the Political Climate including bathroom bills, are making the Trans Community less safe. When you cant be valued for simply who you are then that sets up a situation where people feel like they can do anything to you. Reporter tillery says discrimination often leaves trans women of color without jobs and living in dangerous neighborhoods. Many states, including louisiana, dont even protect trans people under hate crime laws. Dupree, who works as a professional makeup artist, mentors young people in a community trying to find its voice. How many more people have to be killed before something is done about it . Reporter she says they are tired. But wont give up their right to live as who they are. Don champion, cbs news, new orleans. Up next, after a steel plant spewed contaminants on this farmers land, he decided to try an unusual experiment. Clearasil rapid action begins working fast for clearly visible results in as little as 12 hours. But can it fix this teens skateboarding mishap . Nope. So lets be clear clearasil works fast on teen acne, not so much on other teen things. Important message for residents age 50 to 85. Write down this number now. Right now, people are receiving this free information kit for guaranteed acceptance Life Insurance with a rate lock through the Colonial Penn program. 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The hemp theyre growing contains very little thc the compound that makes people high. Seth doane checked out the crop. Reporter vincenzo fornara showed us his nowempty farm, once packed with more than 600 sheep. For generations, our family produced ricotta and meat he recalled. Until 2008, when italys government discovered the toxic chemical dioxin in his sheep and slaughtered the entire herd. The culprit just a mile away. Contaminants spewing from this massive steel plant, europes largest, meant fornaro could never have grazing animals again. To clean up his land, he decided to try a rather unusual experiment. Hes growing marijuana. Fornaro planted Industrial Hemp to try to leech contaminants from the soil. The science is called phytoremediation. Contaminants are absorbed by the fastgrowing roots of the cannabis plant which stores or transforms toxins into a harmless substance. You think this marijuana is the future of your farm . Yes, absolutely, he said. This crop is past harvest and doesnt look like much now. But its proven to pull heavy metals from soil and was used following the Nuclear Disaster at chernobyl to remove radioactive cesium. You have hemp oil, hemp beer. Claudio sells some of the thousands of products made from Industrial Hemp. We want to eliminate the prejudice against cannabis, he said. He took us to an apartment complex built from hemp composite materials. So passersby dont miss the point the grass out front is cannabis. We must innovate, fornaro told us, and develop in a way thats ecologically sound. In the shadow of the steel factory, this farmer is pegging his future to a very different type of plant. Seth doane, cbs news, taranto, italy. The cbs overnight news will be right back. Have you tried the tissue test . Question, are my teeth yellow . Ugh, yellow. What do you use . Crest whitestrips crest 3d whitestrips whiten. 25 times better than a leading whitening toothpaste i passed the tissue test. Oh yeah. Crest whitestrips are the way to whiten cough doesnt sound so good. Take mucinex dm. Ill text you in 4 hours when your cough returns. One pill lasts 12 hours, so. Looks like im good all night some cough medicines only last 4 hours. But just one mucinex lasts 12 hours. Lets end this. [car[clicking of ignition]rt] uh wha woof eeh woof wuh [silence] [engine roars to life] [dog howls] dramatic opera music swells from radio [howling continues] is thno, its, uh, breyers gelato indulgences. You really wouldnt like it. Its got caramel and crunchy stuff. I like caramel and crunchy stuff. Breyers gelato indulgences. Its way beyond ice cream. We have another report now from Holly Williams in iraq. Here, she meets up with a shadow platoon of gamers who are using drones to fight isis. Reporter it looks like a toy plane. Its just a really big slingshot. Reporter and sounds like a lawnmower. But the rq7bv2 is a 1. 5 million drone. The u. S. Military calls it the shadow. In the skies above mosul, it allows the American Coalition to do this, call in air strikes targeting isis positions. Sergeant joe pinchott is a drone pilot with the 82nd Airborne Division in northern iraq, surveilling the battlefield in incredible detail from the back of a humvee. By the vehicle theyre driving, and what theyre wearing its pretty easy to tell. You can see what people are wearing . Enough to make out whether theyre american or not. I cant read somebodys name tag or anything. But i can tell what theyre wearing. Rporter the average age of the drone pilots in shadow platoon is just 22, many of them keen video gamers, but these screens are too secret for us to show you. How is it different to a video game . Its much slower paced, graphics arent quite as good, the controls arent quite the same. Its sort of lik