A new poll shows that Donald Trump is closing in on Hillary Clinton’s lead in a potential general election matchup. The polls also say Bernie Sanders would perform better against Trump than Clinton. CBS News’ Nancy Cordes breaks down the latest developments in the 2016 race. Source

CBS News’ Holly Williams explains how authorities are searching for items linked to the EgyptAir crash in the Mediterranean Sea, and how they hope to piece together what happened. Source

What we know about the victims of the FedEx shooting; Ralph Brennan on reclaiming family businesses Source

An intimate studio in the backyard of Roberta’s restaurant in Brooklyn, New York, is streaming 32 radio programs every week. All the shows on the Heritage Radio Network are about food. Vinita Nair reports. Source

Chip and Joanna Gaines are the rising stars of HGTV’s hit home renovation show, “Fixer Upper,” and they’ve turned, Waco, Texas into the Renovation Capital of the World. Jane Pauley talks with the couple who have become dynamo entrepreneurs. Source

More than 20 years after they played their final show, the Grateful Dead continues to inspire. Twin brothers Aaron and Bryce Dessner took time out from their band, The National, to produce an epic, 59-track tribute to the Dead featuring dozens of musicians. “Day of the Dead” took four years to complete, and benefits the AIDS charity Red Hot. The brothers discuss the project with Anthony Mason. Source

Chef Brian Tsao developed his pan-Asian cooking style in a natural, yet roundabout way. He was born in New York City, but at age 15 found himself studying in China. He’d also become the guitarist of the country’s first touring thrashcore band, and in the process learned about the food of China’s diverse regions. A Culinary Institute of America graduate, Tsao is now executive chef at Mira Sushi & Izakaya and Kimoto Rooftop, New York’s first Asian beer garden, melding influences from China, Korea, Japan, Malaysia and the U.S. into what he calls “interesting but still authentic food.” Source

After a sexting scandal in 2011 cost him his seat in Congress, Anthony Weiner found himself in the same trouble again two years later during his failed bid to become New York City’s mayor, only this time he was being tailed by a documentary crew. The result? The award-winning film “Weiner.” Directors Josh Kriegman and Elyse Steinberg talk about how they got their up-close look at an imploding political campaign, and why the disgraced politician doesn’t want you to see the movie. Source

CBS News chief medical correspondent Dr. Jon LaPook and CBS News contributor Dr. Holly Phillips join “CBS This Morning: Saturday” to discuss a race against time to kill mosquitoes that carry the Zika virus, which is linked to severe birth defects. All Zika cases in the U.S. have been in people who traveled from Latin America, but health officials expect mosquito-borne infections will occur here soon. Also: more than 15,000 Americans suffer a spinal cord injury each year, but one treatment is offering new hope for patients and their families. Source

This week Lockheed Martin unveiled its proposal to have a manned laboratory orbiting Mars within the next 12 years. Popular Science’s senior editor Sophie Bushwick joins “CBS This Morning: Saturday” to explain the technology, and how close we are from turning science fiction into reality. Source