scott shafer, stu rothenberg, thank you both. >> thanks, judy. you. >> woodruff: now, the combination of russian meddling and social media and the effect on the 2016 election. nick schifrin reports on how they became a combustible mix. >> reporter: judy, thank yo last year, the u.s. intelligence community concluded that, in 2016, russia launched a campaign odinformation to discredit hillary clinton, and help elect donald trump. ostne of the sharpest ana of russia's so-called active measures, is former u.s. government intellinence analyst watts, who almost one year ago, testified before the senate titelligence committee. for the reason measures have worked in this u.s. election is because the commander-in-chief has used russian active measures at times against his opponents. but until we get a firm bas on fact and fiction in our , own countt some agreement about the facts, whether it be do i support the intelligencce ommunity or a story i read on my twitter feed, we're going to have a big problem. >> reporter: that probl continues today, and watts

and, scott shafer. he's senior editor for kqed in san francisco. and welcome to both of you to the program. so, stut i'm going to star with you. what did each party need to do yesterday and did they do it? >> well, i think the democrats needed to get candidates tohe november ballot in california, and they needed to show well in a number of othertates, in iowa and new jersey, where there were significani t contests. ink they did that. it looks that way. there's al h thisd wringing that may be in california's top two process that theemrats will be shut out of a few districts, that didn't seem to h wpen. so th good. the republicans got a candidate, a statewide candidate that was concerned they wouldn't have anybody in either of the statewide races, john cox. >> woodruff: in california. in california, yeah. so i think they got that. but i don't see any fundamental shift in the election cycle because of these contests. i don't think there were any new race on the board or any races on the board that are now off toahe. >> woodruff: we'll talk about other