captioning sponsored by cbs >> pelley: no evidence from the white house. the president offers no proof to back up his claim that he was wiretapped by president obama. also tonight, republicans announce their long-awaited replacement for obamacare. the travel ban take two. >> with this order president trump is exercising his rightful authority to keep our people safe. >> pelley: and in our climate diaries we join the hunt at the bottom of the world. >> this hunt isn't about killing whales. it's about trying to save them. this is the "cbs evening news" with scott pelley. >> pelley: today the president was out of sight after he

insisted over the weekend that his phones had been tapped by president obama. president trump offered no basis for four twitter posts on saturday. they included, "how low has president obama gone to tap my phones during the very sacred election process? this is nixon, watergate, bad or sick guy." spelling and punctuation are the president's. the claim, which mr. trump described as a fact, was repudiated by the f.b.i. director and the former director of national intelligence. since his inauguration, mr. trump has continually stamped rumors with the seal of the president, including millions of illegal votes for hillary clinton, terror attacks no one knows about, and describing the news media as "a great danger to our country." but today the wiretap claims seem to cross a line.

democrats and republicans called for mr. trump to provide evidence. margaret brennan leads our coverage. >> i have recused myself. >> reporter: it began with attorney general jeff sessions' decision thursday to recuse himself from any investigation of russian meddling during the campaign after revelations he spoke twice with russia's ambassador to the u.s. last year. >> mr. president, do you still have confidence in your attorney general? >> total. >> reporter: mr. trump strongly disagreed with the attorney general's decision. that same day, conservative radio host mark levin accused the obama administration of using what he called "police state tactics. >> the incredible scandal is the obama administration was investigating top officials in the trump campaign, maybe even trump himself, during the course of the election. >> reporter: breitbart, formally run by stephen bannon, also published those claims on friday. then early saturday morning president trump posted four

tweets. "terrible. just found out that obama had my wires tapped in trump tower just before the victory." a spokesman for president obama called the accusation false and said, "neither president nor obama nor any white house official ever ordered surveillance on any u.s. citizen." james clapper, the former director of national intelligence told nbc that no such warrant existed. >> i can deny it. >> reporter: yesterday the white house in a statement called for congress to investigate. today adviser kellyanne conway said the president was basing his statement on a variety of sources. >> and the president, based on his information and belief has said that he was surveilled. we appreciate the fact that the intelligence committee in the house and senate may, in fact, combine their investigations or expand them to include this. >> reporter: scott, the white house refused to say whether the president privately consulted advisers or president obama about the serious allegations before prickly posting them on

his twitter feed. >> pelley: the white house describing this as the president's belief but offer nothing proof. margaret brennan at the white house. well, if mr. trump's phone were tapped, a warrant from a federal judge would have been required for either a criminal investigation or a counterintelligence case. the judges who rule on intelligence warrants sit on a secret court called fisa, named for the foreign intelligence surveillance act. jeff pegues continues our coverage. >> reporter: law enforcement sources say f.b.i. director james comey was angered by the president's twitter posts. he took the unusual step of asking the justice department to publicly refute the claims, but so far d.o.j. hasn't acted. >> we don't know how president trump knows any of this. >> reporter: cbs news contributor fran townsend led the justice department's fisa unit. she believes comey is still rebuilding confidence in the bureau of its handling of the clint private e-mail server

investigation. >> i think director comey has learned his lesson from the end of the presidential campaign that his making public statements about investigations has not gone very well, so it's natural that he would seek to have the justice department refute this. >> reporter: the relationship between the intelligence community, including the f.b.i. and the trump white house has been strained. just last month it was the f.b.i. that declined a request from the white house to push back on reports that there were constant contacts between trump associates and russian operatives. the f.b.i. counterintelligence division is investigating those communications. several trump surrogates are under scrutiny, including former national security adviser mike flynn, one-time campaign chairman paul manafort, foreign policy adviser carter page, and adviser roger stone. >> the likelihood that there is a counterintelligence investigation by the f.b.i.

against one or more of those individuals that could, in fact, support a request by the court for a surveillance warrant i think is pretty good. >> reporter: in order to listen in on their conversations, the justice department must provide a federal judge with enough evidence to warrant a wiretap. scott, the president cannot legally order the surveillance. >> pelley: jeff pegues for us tonight. in other news today, the president signed a new travel ban to replace the one that touched off chaos at airports until a federal appeals court shut it down. six predominantly muslim nations are targeted but now iraq is off the list. we have more from jan crawford. >> this revised order will bolster the security of the united states and her allies. >> reporter: secretary of state rex tillerson called the ban vital to strengthening america's security. >> to our allies and partners around the world, please understand, this order is part

of our ongoing effortses to eliminate vulnerabilities that radical islamist terrorists will exploit for destructive ends. >> reporter: the new order represents a sharp contrast from the president's first effort both in substance and its rollout. signed in january in front of cameras to take effect immediately, it caused chaos in airports and concerns about civil liberties. courts quickly blocked it. for today's signing, the white house only released a official photograph while tillerson, attorney general jeff sessions, and head of homeland security john kelly laid out the rational for the new order, which will take effect in ten days. >> there should be no surprises in the media or on capitol hill. >> reporter: the ban temporarily bars new visas from six countries for 90 days while the administration reviews vetting procedures. it does not include iraq.

unlike the first order, it also does not apply the lawful permanent residents or people from those countries who currently hold valid visas. it also suspends for 120 days the nation's refugee program, not indefinitely as the original order did for syrian refugees. and it does not include the provision that would have prioritized christian immigrants from affected countries. but critics say it still amounts to a muslim ban and they will challenge it in court. critics also say it doesn't target countries like saudi arabia, which was home to most of the 9/11 hijackers. but, scott, the white house says the six countries in the order are either state sponsors or terrorism or have lost control to terrorist groups like isis or al qaeda. >> pelley: jan crawford, thanks. in his address last tuesday, mr. trump said the vast majority of individuals convicted of terrorism and terrorism-related offenses since 9/11 came here from outside of our country, and

the attorney general repeated that today. but it turns out the facts tell a different story. a study by fordham university school of law says 78% of isis-related prosecutions in the u.s. involve american citizens, and 53% of al qaeda related cases involve people born in the u.s. now to breaking news. late today republicans released details of their long-awaited replacement plan for obamacare. and nancy cordes is following this. nancy? >> reporter: scott, there is one thing and one thing only lawmakers are doing this evening, and this is reading through this 66-page bill just released by republican leaders. key details are still missing, but here's what we can tell you. first of all, the bill would provide tax credits to help americans buy insurance. full credits would go to individuals making under $75, 000 a year, and families making under $50,000 a year, and those

credits would taper off for people making more than that. how generous are these credits? how do they compare to obamacare's tax credits? that i can't tell you because the congressional aides briefing reporters wouldn't tell us. and they also couldn't say how expensive this bill would be. it sounds like they are still crunching some important numbers. now, the bill wound also, they say, freeze enrollment in medicaid and put a cap on medicaid grants going to states. again, we're awaiting figures on what that cap would look like. as you know, obamacare significantly expanded the medicaid program a few years ago. aides also tell us that no taxpayer funds would go to plans that cover abortion. the plan would also maintain some popular provisions of obamacare, including protecting people with preexisting conditions and allowing people to cover their children until the age of 26. >> pelley: nancy cordes on capitol hill. a great deal more about this on

"cbs this morning" tomorrow. tonight the battle to liberate iraq's second largest city from isis has reached a critical stage. iraqi troops backed by u.s. air strikes and american special operation commandos are moving into the western part of mosul. holly williams is there. >> isis is cornered. [explosion] pounded by iraqi mortars. and brigadier general abbas al jbouri can smell victory. he estimates there are only around 2,000 isis fighters left in the city. how many... >> they don't have chance. >> reporter: they don't have chance? >> no. >> reporter: but it's taken four months of bloody fighting to get here. [gunfire] 350 yards from an isis position where the extremists were burning tires today to try to hide their location. the u.s. military is also now inside mosul.

this camera-shy marine special operations team was 600 yards from the front line. with their backs to the wall, isis militants are still sniping at iraqis and deploying their favorite weapon, suicide car bombs laden with explosives and shielded with homemade armor. the general's men stopped this car bomber three days ago with a rocket-propelled grenade. his blackened corpse is still in the dirt. how many people can you kill with one of these suicide car bombs? >> if they are outside, they will kill more than 50 injured. >> reporter: six days ago the fighting was on this street where 12-year-old hanan jasim and her younger brother muhammed stayed with their parents. we couldn't come to the door. we all hid in one corner. children who don't blirch at the sound of gunfire in a city

smashed beyond recognition. it's the price they're paying here in iraq to defeat isis. holly williams, cbs news, mosul. >> pelley: as he left office, president obama warned president trump that the most immediate foreign threat is nuclear armed north korea. today the north launched several missiles in what it called a simulation of an attack on u.s. military bases in japan. david martin is at the pentagon. >> reporter: at first u.s. satellites detected only one launch. later analysts concluded north korea had actually fired five medium-range missiles simultaneously. one failed in the first minute. the other four flew to their maximum range of 600 miles. they landed about 200 miles off the coast of japan. these were not nuclear-capable missiles and not very accurate, but they were relatively small and mobile and caught u.s. intelligence by surprise.

and they were fired in a barrage intended to overwhelm a missile defense system. it's not the first time. last september north korea launched three missiles in quick succession and released the video to prove it. this latest test occurred just as the u.s. and south korea were beginning two months of annual military exercises. north korea always reacts angrily, and u.s. officials expect to see more missile launches in response. over the past three years, the u.s. has used cyber attacks and electronic warfare in an attempt to disrupt north korean missile test, but officials said they had only limited success in part because north korea's use of mobile missiles has increased their ability to conduct tests with little or no warning. as always, north korea has been considered a rogue nation, but a pentagon official told cbs news, "there's definitely a sense that its current leader, kim jong un,

rises to a new level of irrationality and unpredictability, and that has caused great concern." scott? >> pelley: david martin at the peg. coming um -- up next on the "cbs evening news," the philadelphia sales tax, sales fizzle and so do jobs. coming up next, scientists on the trail of the killer whale. . ...i hear you. i hear you because my dad struggled with this pain. make sure your doctor hears you too. so folks, don't wait. step on up. and talk to your doctor. because you have places to go... ...and people who can't wait for you to get there. if you have diabetes and burning, shooting pain in your feet or hands... step on up and talk to your doctor today. whfight back fastts, with tums smoothies. it starts dissolving the instant it touches your tongue.

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business is down as much as it is for the city of philadelphia. >> reporter: brockway claims soda sales have fallen 45% since the tax was imposed. that's because plans to lay off at least 80 workers. philadelphia's 1.5 cent per ounce sugar distribution tax is one of the highest in the country. a typical 12 pack of 12-ounce cans before the tax was $5 is now $7. 520 ounce soda is now up 30 cents to $2.18. brockway says if the tax goes away, the jobs will come back. is it a political game? we are certainly not using this as a game or a fearmongerring tactic. this is reality. >> this is the beginning of the process. >> reporter: but philadelphia mayor jim kenney says politics are at play. >> talk about using their employees as pawns. i always thought they sunk to a low, but this is a new low. >> reporter: kenney says the city has taken in nearly $6

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>> pelley: today in a speech, ben carson, the new secretary of housing and urban development, described slaves as immigrants who came with dreams that one day their decent dents "might pursue prosperity and happiness in this land.

" the naacp tweeted a one-word question: immigrants? the defense department is investigating reports that nude photographs of female marines, some taken without their knowledge, were shared on a secret facebook page. the page called marines united had nearly 30,000 followers before it was taken down. coming up next, a breathalyzer test for killer whales. what bad back?gels work so fast you'll ask what pulled hammy?

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boats to chase them, just like in the old days. this hunt, though, isn't about killing whales. it's about trying to save them. >> one of the reasons we study top predators is to understand the health of the ecosystem that helps them. >> reporter: an ecosystem that is changing. john burban and holly fearnbach, modern whale hunters, using modern gear, a camera mounted on a drone to give the whales a health check-up. and finding some are in trouble. >> she's very, very thin. you can see her ribs really clearly. she's lost all of the fat along her entire body. >> you're looking at a dying whale. >> and she has a dependent offspring. once the female dies, she will lose her offspring. >> reporter: it's too early to know why it's happening, but the prime suspect, antarctica is warming up. >> there is a problem with fewer seals. less ice, fewer seals, is that a

leap? >> reporter: holly and john have had to cobble this process together. she works for a marine animal welfare organization called sr3. he works for no aa fisheries. they get reasons the with lindblad. >> this is the seventh year in a row we've conducted research. >> reporter: and it's the long-term commitment that's important. >> we're studying animals that live as long as we do. to understand them and get enough opportunities with them, it takes multiple years. >> reporter: right now, though, even the short-term commitment is this -- is in doubt. mark phillips, cbs news, antarctica. >> pelley: and that's the "cbs evening news" for tonight. for all of us at cbs news all around the world, good night.

♪ tonight, a new royal wedding watch is officially on. >> this weekend illustrated how >> new clues that prince harry is ready to say i do and the embarrassing moment he had in front of his girlfriend, meghan markle. >> harry got a little carried away. then a one direction star's arrest aftermath. we have video of louis tomlinson's violent airport brawl. plus -- why newly single katy perry is asking for a real friend. and justin timberlake is taking on haters -- and who turned miley into a fan girl at the star-studded iheart radio music award. and before bachelor nick gets alone time with the top three, we find out what really happens inside the fantasy suites. >> how many women did you sleep with? now, for march 6th, 2017,