Crisis in our country. Also tonight, israel and hezbollah edge towards fullscale war. I'm chris livesy in tel aviv. New cbs polling shows vice president harris making gains, but the fight with trump in battleground states a dead heat. Looming strike. East coast workers set to idle ports. I'm tim nicholas in jersey city, new jersey. How a potential strike involving tens of thousands of dock workers could affect the consumers' supply chain. Plus, fall is here. In utah, the leaves are turning. Why it will still feel like summer in many states. And later, it's allaboard in oregon. We head to a beloved park chugging along for 70 years. I'm danya bacchus in oregon, where these small locomotives are taking train enthusiasts of all ages on unforgettable rides. Why do you keep coming back? because he loves trains. Reporter: this is the cbs weekend news from new york with jericka duncan. Good evening and thank you so much for joining us on this sunday. We begin tonight in birmingham, alabama, site of the nation's latest mass shooting attack. Right now, police are searching for the gunman who opened fire on a group of people killing at least four of them and wounding 17 others. It happened in a neighborhood filled with restaurants and bars, often crowded on weekend nights. Cbs' christiane benavidez is there for us tonight in bimingham. Good evening. Reporter: jericka, good evening. This is a popular night life district. Police say that while these shooters were targeting just a single individual, they indiscriminately opened fire on everyone. The gunfire erupted on a birmingham street in a neighborhood of restaurants and bars near the city's university. It sounded like 12 shots of a burst round gun. Sounded like three rounds at once, we heard dot, dot, dot, dot, and saw a bunch of cops. Reporter: police say it was a targeted attack involving multiple shooters, dozens on of people caught in the cross fire. That's 21 people's lives who were forever changed. That's 21 families that were some were destroyed and some were just altered. Reporter: more than 100 shell casings were recovered from the scene. Investigators say it points to a weapon capable of automatic fire. The mayor saying his city suffering. Gun violence is an epidemic level and an epidemic crisis in our country. And unfortunately, the city of birmingham finds itself unfortunately at the tip of that spear. Reporter: officials say there have been at least 105 homicides in the city so far this year. Police now seeking help to identify the shooters. The public's assistance is really where it's going to come down to at the end of the day. That's the biggest piece that will expedite this investigation. Reporter: police say the attended target of the shooting is believed to be among the dead. Officials also said that they believe that at least one of the shooters had an illegal switch on his weapon, allowing it to be used fully automatic. Jericka? cristian benavidez, thank you. Tonight, white house officials say they remain hopeful that the longsimmering conflict between israel and hezbollah in lebanon will not explode into an allout war. But this weekend, new rhetoric and violence is testing that hope. Cbs' chris livesay is in tel aviv with the very latest. Chris? reporter: good evening, jericka. The biden administration says it's pushing for a diplomatic solution to end the escalating attacks between hezbollah and israel, but judging from the tensions here on the ground, no one seems to be listening. A barrage of hezbollah rockets and drones shattered the silence over northern israel early this morning. All of it in response to this. An israeli strike on friday in southern beirut that killed top hezbollah commander ibrahim akyl. Given a hero's purely today in the same hezbollah stronghold where he died. The israeli military says that the war's center of gravity is now moving north, away from hamas and towards hezbollah, are ongoing clashes have pushed nearly 7,000 israelis to flee. We will safely return the residents to their homes, israeli's chief of staff said today. If hezbollah did not understand this, it will receive a blow and another blow until it understands. But israel hasn't forgotten about hamas and gaza. Today, a school where hundreds of people were sheltering was struck west of gaza city. This just a day after the hamasrun health ministry said a strike on another school left at least 22 dead. Half of them children. One of them, a pregnant woman. Israel said school had been turned into a hamas command center. And in the occupied west bank, during a live broadcast, israeli forces shut down the ramallah bureau of al jazeera, as journalists read the warrant. In the midst of it all, talks of a gaza ceasefire in exchange for hostages have completely stalled, jericka. About 100 israelis remain in hamas captivity. Israeli prime minister benjamin netanyahu said today that roughly half of them are believed to still be alive. Chris livesay for us in tel aviv, thank. Tonight, president biden returned to the white house after spending the weekend at his delaware home. Mr. Sbbiden is expected to make one of his final addresses on the world stage tuesday when he speaks at the united nations' general assembly. To the campaign trail now. 2024, there's six weeks until election day. Voting is already underway in a handful of states. Tonight, a new cbs news poll shows vice president kamala harris gaining momentum nationally over former president donald trump. But it's a different story in the battleground states. Let's check in with cbs' skylar henry for more on that. Skyler, good evening. Hey, jericka, good evening to you. That poll shows neither trump nor harris has a clear edge right now. The two candidates are spelling out their policies in the battleground states, as the focus remains on several hot button issues. Former president trump isn't wavering on his stance on reproductive rights, speaking to supporters in the battleground state of north carolina saturday. Women will be happy, healthy, confident, and free. You will no longer be thinking about abortion, because it is now where it always had to be, with the states. Reporter: it's an issue his opponent, vice president kamala harris, has pounced on, considering trump appointed the three supreme court justices part of the conservative majority that overturned roe v. Wade. These hypocrites want to start talking about this is in the best interest of women and children. Well, where ya been? where ya been? reporter: a new cbs news poll shows 52% of likely voters say abortion will be a major factor in their vote for president, though 88% say the economy holds the most weight. The vice president is narrowing her deficit with trump among those concerned about the economy, though 59% still think it's bad. The poll also found americans' position on immigration sharply divided. I don't care who we are, live in a city of 4,000 people and you bring in 2,500 migrants overnight into one place, there are going to be problems. Reporter: trump wins with 83% of voters who believe immigrants commit more crimes and 80% of those who think immigrants take jobs from citizens. Harris wins with 65% of voters who think that immigrants fill jobs americans won't do and 74% of those who say that they're part of what makes america special. It's neck and neck, and we just need to get the vote out in the states that matter to be able to make sure that we can move forward, rather than backward as a country. Reporter: a majority of registered voters also feel as if the tone and tenor of politics in the country has gotten worse. They also say that they think the threat of political violence might increase, regardless of which side wins. Jericka? so much to consider. Skylar henry, thank you. Cbs news will host the only vice presidential debate between senator j. D. Vance and governor tim walz on tuesday, october 1st, here in new york. Join us right here on cbs, our streaming network, cbs 24/7, and paramount plus. The nation's consumer supply chain faces severe disruptions if dock workers at ports along the east and gulf coast go on strike. A deadline is fast approaching. Cbs' tim mcnickholas is in jersy city, new jersey, with details and possible fallout. Tim, good evening. Reporter: good evening, jericka. The u. S. Maritime alliance has until october 1st to reach a deal with dock workers. And ports like this one in jersey city, new jersey, are ramping up work in anticipation of a possible stoppage. Work at some of the busiest ports in north america could soon come a halt. When my men hit the streets, from maine to texas, every single port, a lockdown. Reporter: the union represents more than 40,000 longshoreman at 36 ports including major hubs like charleston, houston, and miami is demanding wage increases, as well as protection from jobkilling automation. I've been fighting automation for years. They destroyed l. A. Reporter: workers are threatening to strike if a new labor agreement with a shipping company represented by the united states maritime licallia is not reached by october 1st. All activity in the port of new york and new jersey with regards to containerized cargo and automobile cargo will cease. Reporter: each year, more than $200 billion worth of goods including car parts, construction materials, and produce pass through the port of new york and new jersey alone. That trade supports more than half a million local jobs. A twoweek strike could cause disruptions to feed into early 2025. Reporter: ryan sweet with oxford economics says if a deal isn't reached in time, a stoppage could disrupt more than half of u. S. Shipping traffic. This is going to be very disruptive to the u. S. Economy. Reporter: in a statement to cbs news, the u. S. Maritime alliance says that it has not been able to schedule new bargaining sessions with the union, adding the only way to resolve this is to resume negotiations. Jericka. Tim mcnicholas in jersey city, new jersey. Thank you. To jenkins, krentucky, now o where a funeral was held today for judge kevin mullness. Police say a local sheriff gunned down mullens in his chambers last week following an argument. The sheriff is charged with firstdegree murder. Tonight, there's trouble churning in the caribbean that could cause problems in the gulf coast. Let's check in with vanessa murdoch for more on this. We're looking at what could be tropical storm helene. Over the next 48 to 72 hours, we're going to watch it become much more tropical in nature, move into the gulf of mexico, and then it has a lot of energy to feed off of. At this point late in the week, there is a potential landfall along the gulf coast. We're looking anywhere from really texas to florida, but the favoritism is essentially from louisiana along the florida coast. Let's talk temperature. Now it is officially fall today. And we are looking at a warm fall ahead. This fall was the fourth warmest meteorological summer on record. Areas most likely to feel warmer than normal autumn, looks like areas in the southwest. We're talking about especially new mexico, southern florida, and new england, as well. Jericka, back to you. Vanessa, thank you so much. Utah had one of the hottest and driest summers on record, but here is what fall looks like. This is wasatch mountain state park. Look at those beautiful pictures. About an hour's dry southeast of salt lake city. Enjoy it now, though. In a few months, this landscape will be a winter wonderland. Straight ahead on the cbs weekend news, fighting fire with fire to manage future flames. Plus, top honors for two of the best in the wnba. Park where the best things in life are still free. If you have wet amd, you never want to lose sight of the things you love. Some things should stand the test of time. Longlasting eylea hd could significantly improve your vision. More people on eylea hd had no fluid in the retina, compared to those on eylea at 4 months. Eylea hd is the only wet amd therapy that helped 8 out of 10 people go up to 4 months between injections, after 3 initial monthly treatments. 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