craig bosswell has the latest from the campaign trail. >> donald trump and sarah palin rallied together for the first time since her endorsement of the g.o.p. front-runner tuesday. >> are you ready to stump for trump? i'm here to support the next presiden t ofthe united states of america. >> everybody wanted her endorsement. she said what you are doing, donald, is amazing. it is a movement. and it is a movement. >> trump's stop in oklahoma is the first time he campaigned in the city of tulsa. >> great people. >> he began the day in iowa, where there was another first. trump supporters disappointed to see only trump, not palin. >> it was advised that we have a special guest so we were surprised that, my friends and i were surprised that she wasn't here. >> trump and ted cruz are running neck and neck in iowa. where cruz also took a lit when the state's republican governor came out against the texas senator over ethanol subsidies. >> cruz campaigning in new hampshire turned it into an attack line. >> donald trump promised not only to protect the ethanol mandate, but to expand it. >> on th

craig bosswell has more from iowa. >> reporter: hillary clinton got a big endorsement from gabrielle giffords, a former congressman turned gun rights advocate after she was shot and injured in 2011. >> i want to say these two words. madam president. >> clinton clinging to a narrow lead in iowa says she is best qualified to take office from day one. >> go out and please stand up for me on monday night and if you do, i will stand up and fight for you for the next four years. >> some lined up to hear clinton talk about another issue, her e-mail scandal. >> and these people are undecided voters and disappointed she didn't address the issue. >> what do you think now? >> i think it is a very high level national security issue. >> so at some point, between now and monday, you want to hear more about this. >> i want to hear more about it. sanders says he is staying focused on the issues that impact voters. >> right now, with the election today, i would say it is a toss- up. >> the republicans are also crisscrossing the state for support. >> don't we all like winning? we got to win, okay? >>

craig bosswell reports. >> cbs news projects that donald trump has won the south carolina republican primary. trump came out ahead of marco rubio and ted cruz who finished >> i want to begin by thanking the people of south carolina. this is a special state. >> jeb bush finished in the bottom three and he told supporters that this was his last primary as a 2016 presidential candidate. >> the people of ohio and new hampshire and south carolina have spoken. i really respect their decision. tonight i am suspending my campaign. yeah. >> south carolina voters say the most important quality is that they share issues and the most important issue is terrorism. >> for rubio and cruz, victory in south carolina means heading into tuesday when almost 600 delegates are at state. >> we can stand together with a proven consistent constitutional conservative and bring back morning in america. >> the 21st century of the a bartender from cuba who stands close to being the president of the united states of america. >> donald trump will try to make it two in a row in the nevada caucuses. >> lydia: meanwh

craig bosswell has the story from washington, d.c. >> hillary clinton ran away from the south carolina presidential primary. cbs news projects that clinton beat vermont senator bernie sanders by a wide margin. >> thank you so much south carolina. >> exit polls showed 84% of black voters went with clinton and she also dominated among women by nearly 50% and hopes americans give clinton a chance >> the main thing on her mind is to see that the americans have what they need to have. >> with more than 800 delegates up for grabs next tuesday, sanders looked past south carolina and the next few days is on vermont, massachusetts, vermont, oklahoma and colorado. sanders was in texas earlier on saturday where he is fighting an uphill battles in the poll >> if all of you come out to vote and you bring your friends and your neighbors and your co-workers, we are going to win here in texas. >> thank you, alabama. thank you. >> clinton campaigned in alabama before returning to south carolina for her victory celebration. >> we're going to compete for every vote in every state. we're not taking anythi

craig bosswell, cbs news. >>> arizona senator john mccain criticized trump's comments about the khan family. part of it reading, i challenge the nominee to set the example for what our country can and should represent. quote, when you say your job building buildings is akin to our sacrifice, you are attacking our sacrifice. >>> he held up a pocket sized version of the u.s. constitution. since then, sales have skyrocketed. it became the second best selling book on amazon, just behind the new harry potter book. >>> hillary clinton is getting a bump in the polls thanks to the democratic convention. clinton now has a 7 point lead over trump. trump held a slight lead before last week's convention. millions of dollars are pouring into campaigns legalizing the recreational use of marijuana in california. the national coalition has raised more than $2 million. former facebook president sean parker has contributed to a group that has raised 6.7 million to support passage. if approved by voters in november, people 21 and over would be allowed to possess, transport, and use up to an ounce of ma

craig bosswell reports from the white house. >> isis is honoring president obama. >> reporter: donald trump is trying to shift the focus back to national security. he says the president's policies created a vacuum that allowed isis to grow. >> he founded isis. and i would say the cofounder clinton. >> reporter: the move is an attempt for trump to get back on track after his controversial remarks suggesting 2nd amendment advocates could take gun control matters into their own hands. trump says he was talking about rallying voters. his opponents say it was inciting violence. >> words matter, my friend. and if you are running to be president, or you are president of the united states, words can have tremendous consequences. >> reporter: hillary clinton will try to shift the focus to out a point by point contrast between her plan and trump's. >> i am proposing an across the >> reporter: clinton can dealing with newly released emails from her time as secretary of state. one of the emails is from a clinton foundation official, on behalf of a job seeker. job seeker was a stormer staff member

final approval might not come un >>> as craig bosswell reports, donald trump doubled down on his praise of vladimir puttin'. >> reporter: hillary clinton came out swinging at donald trump the morning after they attended a televised commander- in-chief forum in new york. >> how totally unqualified he is to be president. >> reporter: at the fore know you, she admitted it was a mistake to have a personal e- mail account as secretary of state, about you she defended her handling of top-secret information. >> i communicated about classified material on a wholly separate system. >> reporter: her comments came the same day house democrats released a 2009 e-mail exchange between clinton and former secretary of state colin powell. in it, he described how he had a personal computer hooked up to a private phone line to avoid going through state department servers. donald trump appeared separately where he said u.s. military needs new leadership. >> the generals were reduced to rubble. >> reporter: he went on to praise russian president vladimir putin. >> in that system, he's been a leader far more

craig bosswell, cleveland night team. was probably his last trip to cleveland as president. all to support hilary clinton. >> hello cleveland! mr. obama denounced trump's comments about women and wasted no time getting to point, urging the crowd to vote for clinton. >> there is something we can do about it. right here in ohio, a badle ground state. ohio's always close and so you vote, vote early right now. >> i thought it was awesome. he mentioned how we need to get out and we need to protest our rights at humans, civilizeed citizens. >> early voting has already started in america. 45 million americans expected to vote before election day. >> a sad and tragic story from cleveland's west side. getting more answers about last night's in a wheelchair. 2 drivers were drag races. they collided, lost control and hit the 5a -year-old victim. officers said the driver was either drunk or high, a passenger in her car was seriously hurt. police are looking for the other driver. >> there is still flood damage, right now in north carolina, danger, too. river expected to crest overnight.