nbc's chris clackum has more on the changing race. >> reporter: with a win in wisconsin, bernie sanders has now won seven of the last eight democratic primaries or caucuses. >> do not tell secretary clinton, she's getting a little nervous, and i don't want her to get more nervous. but i believe we've got an excellent chance to win new york and a lot of delegates in that state. >> reporter: new york is the next primary state on the 19th, and where hillary clinton expects to begin closing in on the numbers needed for the nomination. she might get even closer a week later when five mostly northeastern states, including pennsylvania, hold primaries. >> god bless the great state of wisconsin. >> reporter: on the republican side ted cruz won wisconsin not only for himself -- >> tonight is a turning point. it is a rallying cry. >> reporter: but one for the anti-trump crowd. >> wisconsin just delivered donald trump an epic blow, the first one that he's really had to absorb since launching his campaign in june. >> reporter: trump, though, remains unfazed. >> i'm millions of votes more than anybo

nbc's chris clackum as more. >> a big break for taxpayers is that the filing deadline is next monday the 18th because this friday the 15th is the emancipation holiday in washington, d.c. not that it makes a bit of difference to the perpetual pro cast nature. >> i put them on the back burner and get them done right before i have to have them done. >> most americans have already filed their returns. >> 86% of the people surveyed in our recent poll have handled their taxes before march 31 z. >> a third of those surveyed used an online tax prep program while a fourth did it themselves. more taxpayers than ever are e-filing their returns, especially the country's 83 million millennials who have become the favorite target of the tax preparation industry, and especially when there's a refund coming. >> there are plenty of responsible things you can do with that money. you can certainly save it, you can use it to pay off some bills, potentially some loans. >> or treat yourself for being ahead of monday's midnight deadline for filing your taxes. chris clackum, nbc news. >>> meanwhile, preside

chris clackum, nbc news. >>> the white house is unveiling stricter rules for brokers giving investmentdvice to people saving for retirement. under the new regulations brokers may have to disclose conflicts of interest when it comes to recommending financial products. brokers may also start advising against riskier investments. brokers will have to fully comply with the new regulations by january of 2018. >>> drugmaker pfizer is calling off its proposed merger with rival allergan. the decision was mutual. new treasury department rules helped scuttle the deal. under the merger plan pfizer would have moved its home base to ireland, on paper only, in order to pay fewer taxes. but new government regulations made such so-called tax inversions less lucrative. >>> well, san francisco has become the first city in the nation to require businesses to give fully paid leave to new mothers and fathers. many big companies already offered paid parental leave, but smaller businesses say they can't afford to give it to their workers. the law takes effect in 2017 and will require san francisco businesses

chris clackum, nbc news. >> amazing talent. >> absolutely. >>> and "first at 4," safety in the skies. of the t the new efforts to protect passengers. >>> plus, it's a flight that hasn't taken off in weeks. we were there as passengers touched down in washington for first time since a deadly >>> storm team4 tracking rain headed this way. i'll tell what you it means for your morning rush and for the home opener for the washington nationals. >>> plus, whether you own or rent an apartment, the new list that confirms a big complaint about living in this region. >>> today the head of the tsa told lawmakers the agency is focused on protecting travelers. >> in the wake of the brussels' attacks, lawmakers are concerned about potential safety failures at airports. nbc's jay gray has more. >> reporter: with growing security lines and new worries overseas, lawmakers sat down this morning with transportation security administration chief peter neffenger. >> i can assure you and the pub luck that we serve we are focused on our counterterrorism mission. >> reporter: the hearing comes a day after sena

chris clackum, nbc news. >> everybody likes the security? it does take a little bit of time. >> extra time. you sit there and wait and wait. >>> well, you don't have to good to japan to celebrate the cherry blossom festival. >> coming up next, we take you to the festivities happening right here in the bay area this weekend with some people you know. san francisco's cherry blossom festival is wrapping up tonight. ==take vo== this was the second weekend of >>> san francisco's cherry blossom festival is wrapping up tonight. this was the second weekend of the festival that celebrates japanese culture. today the big event was the grand parade starting at city hall and ending in japan town. organizers say each year more than 200,000 people take part the cherry blossom festival. this year our very own robert handa and mike inouye. hard to miss that nbc float, right? it's very colorful. next oyear the festival turns 50. pretty amazing. a beautiful day to do it too. ♪ >> in honor of record store day, the grammy award winning band metallica, the bay a

chris clackum, nbc news. >>> unanswered questions.ing up, the investigation into the death of prince as fans continue to remember his music and his life. >>> i'm in the middle of the race. i'm not going to stop now. >> the virginia movie premiere that may inspire you to put on your running shoes. kids: he came here from rocky married 27 years. raised 6 kids. including 5 boys. he had grandpa move in with us. glenn: we loved having him as part of the family. it's what you do. kids: in congress, dad will protect he'll fight for jobs and protect social security and medicare. glenn ivey will never quit on you; and we should know, we're his kids. glenn: i'm glenn ivey and i approve this message. i'll take on the republicans for all of us. ♪ ♪ >>> right now at 11:31, police in montgomery county are trying to figure out how a young man died. >> police tell us at least three people were involved in some kind of fight in centreway park overnight. one 18-year-old later died. police say there's no threat to the public. >>> and president obama is

>> reporter: chris clackum, nbc news. >> and tonight we know the name of the officer who shot and killedanother officer by mistake in prince george's county. how the family of the three brothers' charged in that officer's death is reacting to the new information in this case. >>> and a closer look at what could be the most expensive political race in maryland's history. >> millions of dollars being spent. what the leading but jamie raskin is the only abdemocrat for congress who led the fight for tougher gun laws. only raskin took on the nra to ban military-style assault weapons. raskin: i'm jamie raskin, and i approve this message. >>> we all heard about that freeze warning overnight, so you bundle up to go out and it was actually kind of warm out there today. >> yeah. and it's a frost advisory, wendy. >> okay. well, i heard the -- >> we stand corrected. >> you know what i mean. >> i know what you mean. let's take a look outside right now. plenty of sunshine out there. it's nice. it really is quite nice. you know, once again if this was ea