sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, megan thompson. >> thompson: good evening and thanks for joining us. a day after agreeing to reach a cease-fire in syria within a week, world leaders met today to end the five-year civil war that has fueled europe's migrant crisis and may have cost half a million lives. diplomats from the united states, russia, turkey, saudi arabia, and iran are among those attending an annual security conference in munich, germany. secretary of state john kerry criticized russia for bombing raids during the past four months backing syrian president bashar al-assad, who the u.s. wants removed from power. >> the vast majority,

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, hari sreenivasan. >> sreenivasan: good evening and thanks for joining us. campaign 2016 is in the fly-by phase before primaries and caucuses in a dozen states two days from now, including seven southern states. today, democrat hillary clinton campaigned in tennessee and arkansas, while her lone rival, vermont senator bernie sanders, was in minnesota, colorado, and oklahoma. the republicans-- businessman donald trump, florida senator marco rubio, texas senator ted cruz, ohio governor john kasich, and doctor ben carson-- campaigned across the south from georgia to oklahoma, and up north in massachusetts. former

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, alison stewart. >> stewart: good evening and thanks for joining us. the 2016 race for the white house is entering a new, faster- paced phase, with roughly 90% of the delegates in the nominating process still up for grabs. after winning yesterday's first- in-the south primary in south carolina and sweeping all 50 republican convention delegates, businessman donald trump is in the lead. trump and his rivals are now focusing on the dozen states holding primaries and caucuses on march 1, known as "super tuesday," when a quarter of the nominating delegates are at stake. next saturday, it will be the the democrats'

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, this is pbs newshour weekend. >> stewart: good evening and thanks for joining us. presidential candidates are rallying supporters to turn out at tomorrow's iowa caucuses, the 6first votes that count in the 2016 race. the final "des moines register" poll, released last night, shows the first choice of likely republican caucus-goers is: donald trump, 28% ted cruz, 23% marco rubio, 15% ben carson, 10% rand paul, 5% and chris christie, 3%. jeb bush, john kasich, carly fiorina are at 2%, along with the past two caucus winners, rick santorum and mike huckabee. on the democrats side, hillary clinton is the first choi

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, william brangham. >> brangham: good evening and thanks for joining us. the body of supreme court justice antonin scalia is expected to be flown home to virginia over the next 48 hours following his sudden death yesterday in texas. to honor scalia, president obama ordered american flags to fly half-staff today at the supreme court in washington and at federal buildings around the nation. like so many other political leaders, president obama has offered his condolences to scalia's family. but he's also promising to fill the vacancy on the high court. in an early sign of a possible bitter confirmation battle ahea

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, william brangham. >> brangham: good evening, and thanks for joining us. we begin tonight with politics. since 1952, new hampshire has held its influential, first-in- the-nation presidential primary, and will do so again three days from now. tuesday's ballot features the two democrats and eight republicans still in the running for the white house. new jersey's chris christie is one of three current or former governors reaching for the top tier of the republican pack. >> you got to ask from each of us, who do you believe is going to stand for you? >> brangham: ohio's john kasich is another, as is florida's jeb b

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- designing customized individual and group retirement products. that's why we are your retirement company. additional support has been provided by: and by the corporation for public broadcasting, and by contributions to your pbs station from viewers like you. thank you. from the tisch wnet studios at lincoln center in new york, william brangham. >> brangham: good evening and thanks for joining us. voters in new hampshire are getting their last looks at the candidates on the ballot in the first-in-the-nation presidential primary. candidates still running have spent a total 444 days on the ground in new hampshire, according to manchester t.v. station wmur, while the candidates and super-pacs supporting them have spent a combined $84 million in the state alone, according to "the new york times." that's a lot of time and money to win over the roughly 500,000 primary voters who're likely to vote. and last night, seven republican candidate

sue and edgar wachenheim, iii. corporate funding is provided by mutual of america-- design