Ex expected to say she will not another term. A groundbreaker on capitol hill who paved the way poorfor women in the senate. Wep sent this out as a break alert on our nbc washington app, where we will continue to update the story throughout the day. Back to you. Thank you, angie. Storm team 4 meteorologist chuck bell joins us with his forecast. Temperatures warming up an melting out there, chuck. You bet. Now that sunshines out temperatures confrontly above the freezing mark the meltdown has truly begun. You may need the umbrella even hope to the sun is out with all the frozen water dripping and melting off treeps, branching, power lines. Outside National Harbor fairly chilly. A lot of ice across the potomac shoreline starting to break up a bit. At 43 already at Reagan National. 41 degrees at restin town center. Gaithersburg 40 degrees in parts of southern prince georges county. Nothing on storm team 4 radar for now. Dry for tonight and into tomorrow but this wave of moisture is coming out of way and could spell at least at the onset a little hint of a wintry mix, second part of the day tomorrow. Talk more about that in a few minutes. For the rest of today hour by hour low 40s. Mid40s later this afternoon. Mid30s by 9 00 tonight. Tomorrow a little chance of an afternoon start which would be a wintry mix at beginning before changing all toway rain. Talk more about that in a couple of minutes and more on the second day. Ready to spring into spring. We are ready for that. Right now we are thawing the case but it wasnt the case this morning. Many saw it soon as you walked out of the door. Ice everywhere. News 4 is in clarendon, many began chip ago way at the ice. Bet had you do that too. Didnt you, richard . Reporter absolutely barbara. Who didnt . Starting off the day with the ice scraper then replaced with the umbrella because all the ice coating the tree branches starting to melt and drip down. You can see the branches are dry now. A big improvement over the past few hours. Earlier people were slipping, sliding and falling. The sidewalk shuffle was how most got around today. Even those that drove in had a hard time getting the day started. John zepplin chipped away at the frozen shield covering his car and adding another layer of prep time to his morning routine. Allot time for it this morning before heading out. Reporter shovels and ice scrapers scratching the surface. This park bench was sealed in ice. And it looked like crystals were hanging from trees at times weighing down branches. By far, the walkways posed the greatest risk. No question it is slick out today and getting around is difficult. To show you just how slippery the sidewalks can be take a look at this phone. It would be like a hockey puck gliding right across the sidewalk. Really slippery and really sick everywhere. Nothing was salted. Reporter the light of day helped change ice intoicles dripping down making it feel like rain. Not too bad. Everything is melting right now. Should be all right. Reporter the area is still thawing out, but a lot of ice cove ergring the roadways and sidewalks now melted. Well dealing with a lot of puddles this late morning, early afternoon. Reporting live in Richard Jordan news 4. Good to see you. Breaking news. Angie goff at the live desk. Whats happening now . Yes. Breaking news coming out of northwest d. C. D. C. Mayor Muriel Bowser just nominated a new fire chief, and there he is seattle fire chief gregory dean who spent 40 years with that department. He will replace eugene jones, interim chief. Look for updates on twitter and nbc washington. Com for him, but mayor bowser also just tweeting out she wanted to thank the interim chief eugene jones for his leadership and service and after a lorngs National Search the seattle fire chief is her choice to take over. Back to you. Thanks angie. And new this morning, not one but two Security Breaches at the white house today. The first happened last night actually when someone stepped over a bike rack to get into the grounds. That person was arrested. This morning, a second breach as someone tried to walk through gate while someone else was leaving. That person was arrested after a fight with two security or secret service officers. Both suspects now custody. If you heard a little extra buzzing overhead last night, you werent dreaming. Norad is conducting exercises through wednesday. The operation is calmed falcon virgo designed to test norads ability to identify and intercept possible threats. And right now former prisoners of wars veterans and air force officials marking a somber anniversary. 50 years ago today lieutenant corner Hayden Lockhart shot down over vietnam becoming the first prisoner of war there. Complete way b52 fly jover from Minot Air Force base. Keeping an eye on the americanisrael Public Affairs meeting. Benjamin netanyahu sfoekpoke to the group. What he to say there, plus the latest plan to fund Homeland Security. Stronger than ever how israeli Prime MinisterBenjamin Netanyahu just described the relationship between israel and the u. S. While speaking to aipac. A day before he addresses congress a visit that upset the white house. My speech is not intended to show any disrespect to president obama or the esteemed office that he holds. I have Great Respect for both. The administration wasnt happy when netanyahu accepted the invitation to speak from house republicans. This as u. S. Israel tensions rise over the effort to forge a nuclear deal with iran. Thats the latest from the live desk. Back to you. Thanks angie. Today we expect the texas nurse who contracted ebola to formally file suit against the hospital where she became ill. Nurse nina pham says Texas Health Presbyterian hospital in dallas didnt give her proper training or equipment. She also says she still suffers side effects. She became ill while treating eric duncan the first person to be diagnosed with the disease while in the u. S. Hospital Officials Say theyre optimistic they can resolve the legal battle. The terrorist group isis make as threat against a new target. Plus keeping you safe on metro. Whats being done to make sure the agency is safer and secure each time you ride the train. And were monitoring the upco Barbara Mikulski. There on the wharf in baltimore with an announcement coming. We will take it when it happens. Im storm team 4 meteorologist chuck bell. Sunshine out. Winds kicked up a bit and a big meltdown going on behind me right now. Enjoy the warmth while its here because more arctic air and more chances for wintry weather, just a few days lets go back to baltimore where senator brash mikulski is speaking now. Or am i campaigning for my constituents . I had to decide how i would spend my time. Fighting more my job or fighting for their job . Do i spend my time raising money . Or do i spend my time raising hell . Do i focus on my election . Or do i focus on the next generation . Do i spend my time promising what i would do . Or do i do it now and do it the way i would like to do . So as i thought about who am i campaigning for . It really became clear that i want to campaign for the people. I want to campaign for the people of maryland. Im going to make sure they have a future nap they have a job. That they have promise amend opportunity. So im here today in fells point to announce that i will not be seeking a sixth term in the United States senate. This is has been a hard decision to make. I have served in the senate for a while, and at the conclusion of this term lie have served over 30 years. Thats hard to believe. There it is. Senator brash barbara mccalls mikulski. First elected in 1976 began services in 1987 announcing retirement. Today inspector examining the train you take to work. Kicking off a full analysis how safe metro is. News 4 Megan Mcgrath explains what this means to you and your safety. Reporter the inspections get underway today and are expected to take a couple of months wheresing up sometime in may. The federal Transit Administration will be taking a look how metro operates its trains and buses. Theyll be assessingweaknesses. In the in response to what happened in the stays, but talking to riders this morning and feel its a good idea. Do you feel like its safe . I do most of the time. I feel like the intelligence community, its watched closely. Safe. Reporter inspection as good idea . Absolutely. Always looking to make things better and make things safer. Yeah. Definitely a great idea. I think thats probably good. It doesnt seem like metra has a handle on whats going on. Inspectors looking at both bus and rail and say that the inspectionless not impact service. Megan mcgrath news 4. Today local Leaders Debate proposed purple line. The Maryland Public Policy Institute is hosting that debate set for 7 00 p. M. The purple line is a light rail system running between bethesda and new carrollton. Twitter reporting investigative threats against its cofounder and staff from the terrorist group isis. Shut down a council allegedly used by isis. The threat is seen as retall retaliation for that. Directing to jack dorsey we always come back. All eyes on the senate as they take another critical vote in the battle over Homeland Security funding. The bitter battle spilled over into this week prompting questions whether the speaker of the house can keep his job. On capitol hill with a look at whats standing in the way of compromise. Reporter barbara, the biggest hurdle seems to be determining whether democrats and republicans can sit down at the table to talk about Homeland Security funding and immigration. Theres a vote we understand is going to happen late this afternoon in the senate on whether or not to conference between the two, and we also understand that Senate Democrats are going to vote against it forcing down that vote. That may be deliberate because theres an old rule here at the capitol that says if they vote against it House Democrats get to bring up that very same bill. Basically that clean dhs funding that has nothing to do with immigration. Voting against it could force a vote on the other side. Also were watching john boehner and conservatives in his party, some of whom want to vote him out of that job. Its just not clear that they have enough votes to get that done. Barbara . Thank you, tracie. From mikulskis retirement to funding the department of Homeland Security we are breaking down all of this news for you this morning. Nbcs capitol hill correspondent luke russert joins us with all of that and more. And lets first talk about maryland senator Barbara Mikulski just announced, we just heard her, shes going to retire. What does this mean for maryland . Who do you think might decide to replace her . A fascinating democratic primary, because in the state of Maryland Senate seat essentially is a lifetime appointment for a democrat especially when the race happens in a president ial year like were going to have. So expect a lot of people to get in this democratic primary, because the bounltbounty is great. Chris van hollen, a representative in mon gumry count montgomery and donna edwards, Martin Omalley a big name might get in the race since Hillary Clinton beats way more liberal counterweight to her. If he looks at this, might have a better shot at becoming a senator instead of becoming president , he might get involved. Going to be a real real fascinating race on the democratic side. And any idea who Barbara Mikulski might get behind . I dont think shell endorse anybody. You never know. Talk about Homeland Security. The senate expected to take a procedural vote. Whats the house going to do . Were waiting to see. Blocking a movement the house wanted to go to conference iron our differences between the two bills. Democrats will block that because they want the department of Homeland Security funded the entire fiskcal year. After that what will john boehner do . Put a yearlong funding bill to the department of Homeland Security on the house floor or still try to come up with republican alternatives . Remember this is all about immigration. Republicans dont want to fund the department of Homeland Security until they can stand up to president obama regarding immigration nap said they havent figures how to do so. Chaos as tracie potts pointed out. They dont want to replicate that again. Resolved by friday . Yes i think. The Republican Congress hasnt been able to work on anything else. They wanted to change the message. Have not been able to change. Speaking of john boehner, his guest, israeli Prime MinisterBenjamin Netanyahu told aipac this morning the u. S. And israel still have a strong alliance. Tomorrow she expected of course to address congress but not everyone is happy about that speech . Talk about that. A very controversial speech because its a joint session of congress that usually when those occur the white house is looped in. In this case the white house says they were not told. Saying this is political. Republicans led by john boehner having netanyahu address congress with the idea to knock down these negotiations that the administration is ongoing with regarding iran and their desire to obtain a nuclear are weapon. Expect political fireworks. Netanyahu playing it down going here and speak on behalf of my country, but also a few dozen democrats saying, were not going to participate in this. Protesting and not showing up. Fascinating dynamic. See who shows up and talk about that. Indeed. Thanks for having me. Great to see you. For more from luke and the rest of the nbc News Political Team check out first read on nbc news dot com. A traffic alert. How long can you expect delays on the richmond highway in fairfax count ji tell you about that. Plus kwhashgs what are you doing with your tax return . A gases prices shot up nationwide increasing more than 30 dplentscents in a month. The thrill of falling gas prices is gone according to one person. The average gas for unleaded gasoline 2. 43. In d. C. , a gallon of gas runs 2. 53 on average, and maryland near our area prices around 2. 43 for a gallon of regular. Drivers in the state of virginia will pay around 2. 27s in West Virginia a gallon costs about 2. 41 on average. If you drive on richmond highway every day you may have noticed big changes this morning. Starting today traffic has been cut down to one lane only in both directions. This is in a quarter mile stretch bean Fairfax County and widening of route 1. This part of the project lasts until may of 2016. So next may. Well it is the heart of the tax season and many of you are thinking how youre going to spend your refund. Nbcs kurt gregory has an agency putting the money away rather than spend it. Frrt youre getting money back from uncle sam that extra cash can feel like a bonus, but for many what to do with it is the big question. I always save in order to spend later in the year. Perhaps on a trip or something kind of big. Save it and probably save it in the college fund. Reporter according to the National Retail federation nearly half of those expecting a refund plan to save it. The economy improves we think americans are looking at that extra chunk of money that theyre going to get from uncle sam as a way to save for the future. Reporter only 13 said they will splurge on a vacation. While another 10 plan to spend their return on a major purchase like a television or a car. Perhaps the biggest savers are young americans. More than half americans between the ages of 25 and 34 plan to tuck away their refunds. This is the age group that may not have a lot of money socked away at this time. They learned from their parents about you know, the potential for crisis with the economy, and they really have learned the hard way that money doesnt come easy. Reporter hard Lessons Learned from the financial crisis. Creating a generation of savers. Kurt gregory, nbc news. And were staying on top of breaking news involving the d. C. Fire department. Reporter its official. D. C. Now has a new fire chief, mayor Muriel Bowser made the announcement moments ago. Gregory dean former chief of the Seattle Department takes the helm may 1st. Interim chief eugene jones is out. Hes been places on administrative leave until officially dismissed from the department as for dean he says hes got a lot of learning and listening to do in the next few months. He says he will look at several top issues. All of that coming up next. All right. Caught on video. A Deadly Police shooting in the los angeles area. We are learning about the man shot and killed by police. Plus, another round of sleet and freezing rain. Not kidding. We have breaking news for you. Disease mayor Muriel Bowser announced were getting a new fire chief here in washington. Live from northwest d. C. With more on the big announcement. Mark . Reporter barbara, its official. D. C. Has a new fire chief. The mayor made the announcement moments ago. His name gregory dean. For the past ten years head of the Seattle Fire Department. Now, dean will take over the department knowing that he has a lot of challenges ahead of him. He saids are staffing and equipment as well as morale and wil