PBS NewsHour - Segments

After President Trump acknowledged that he spoke to Ukraine's president about investigating possible 2020 rival Joe Biden, he spent the day at the U.N. fending off questions about the potential abuse of power. Meanwhile, the administration's refusal to share a whistleblower's complaint is pushing some Democrats closer to the question of impeachment. Yamiche Alcindor joins Judy Woodruff for more.

Days after global protests calling for climate change action, the United Nations held a special climate summit where world leaders and other officials gathered to hammer out specific pledges to reduce greenhouse gas emissions. William Brangham joins Judy Woodruff to discuss whether action will come from the talks, the lack of U.S. leadership and activist Greta Thunberg's fiery admonition.

A panel of appellate judges on Monday considered whether a Trump administration rule on federal funding for clinics that make abortion referrals may remain in place while legal challenges work their way through the courts. More than 900 clinics, many run by Planned Parenthood, have given up funds rather than complying with the new regulations. John Yang talks to Sarah Varney of Kaiser Health News.

As the Democratic presidential candidates angled for attention in Iowa, new polling suggested a shifting political reality. Sen. Elizabeth Warren has stepped into first place in that state, over former Vice President Joe Biden and Sen. Bernie Sanders. For candidates who didn't make the top slots, the new numbers are making them rethink their strategies. Lisa Desjardins reports.

Iowa plays an outsized role in presidential politics, and new poll numbers from that state could influence how different Democratic candidates' focus their campaigns. The poll by The Des Moines Register and CNN puts Sen. Elizabeth Warren two points ahead of former Vice President Joe Biden, with Sen. Bernie Sanders in third. Judy Woodruff breaks down the numbers with J. Ann Selzer of Selzer & Co.

Amy Walter of the Cook Political Report and NPR's Tamara Keith join Judy Woodruff to discuss the week's political news, including a new poll that shows Iowa voters favoring Sen. Elizabeth Warren, Sen. Cory Booker's scramble to raise enough campaign money, and why a whistleblower complaint withheld from Congress may make some reluctant Democrats reconsider formal impeachment proceedings.

As one of the world's biggest and best-known movie stars, Brad Pitt is spending as much time helping get films made as he is acting. His latest project, "Ad Astra," is about a journey to the far reaches of the solar system, as well as the journey inward for a tortured soul. Pitt sits down with Jeffrey Brown to discuss his career, and why he helps make movies when he's not the star.

To inspire and embolden seniors to stay active, the nonprofit My Jump grants wishes like the chance to skydive, ride in the Goodyear blimp or drive a race car. There are less pulse-racing requests too, like vow renewals, first-time train rides, and veterans trips to war memorials. The NewsHour's Julia Griffin reports.

In February, Peruvian authorities were sent in to the Amazon Rainforest to disrupt environmental devastation brought on by illegal gold mining. Satellite imagery now shows a 90 percent decline in new deforestation as the government and environmentalists try to initiate reforms. Special correspondent Leo Schwartz reports on the second of a two-part series by NYU's Global Beat program.

Democratic candidate Elizabeth Warren joined the General Motors strike in Detroit on Sunday, calling for GM to be held "accountable." For the last seven days, nearly 50,000 members of the United Automobile Workers Union have gathered at picket lines across the country, in the largest strike in the U.S. in over a decade. Phoebe Wall Howard of the Detroit Free Press joins Megan Thompson for more.

The documentary "Forced" follows three women who fled their Nigerian village after a 2014 Boko Haram invasion. The film looks at their attempts to rebuild their lives as displaced people and how they've come to symbolize the plight of other women and girls who survived abductions and sexual assault. Hari Sreenivasan spoke to filmmakers Grace Oyenubi and Nani Sahra Walker to learn more.

Young leaders gathered on Saturday at the United Nations for the Youth Climate Summit, where they voiced concerns and offered solutions for a warming planet, a day after millions of young people participated in a global climate strike. Megan Thompson spoke with producer Maya Navon and associate producer Nina Joung, who covered the strike in New York City for WNET's Peril and Promise initiative.

Fires have destroyed millions of acres of rainforest in the Amazon and in portions of Indonesia in recent months. This week, an international coalition of indigenous leaders met in New York during the United Nations climate summit to call attention to the destruction of their land, confront climate change and ask for increased protections for the environment. Megan Thompson reports.

Once widely popular, pinball machines have mostly become relics of the past. But the Pinball Hall of Fame in Las Vegas is proving they still hold nostalgic appeal, with more than 250 of them now on public display, and plans to expand to a larger space on the Vegas strip. From old-time parlor games to the Simpsons, all you need to play is a quarter. NewsHour Weekend's Christopher Booker reports.