Wynne Davis

Updated at 9:05 p.m. ET

Puerto Rico Gov. Ricardo Rosselló announced Sunday that he will not seek reelection in 2020.

The announcement follows days of protests across the island sparked by leaked messages between Rosselló and his staff. The messages were widely condemned as homophobic and misogynistic.

Here's something to think about on this Fourth of July: If you are born in the United States, citizenship is a birthright, but if you immigrate to this country, the work of the citizenship process culminates in the reciting of an oath.

The U.S. citizenship oath consists of 140 words. Some of those are more contemporary, others more archaic. That's because the idea of the citizenship oath is almost as old as the Constitution itself.

Richard Lugar, the former Indiana senator whose work in pursuit of nuclear nonproliferation helped cement his place as one of the Republican Party's most influential voices on foreign policy, died Sunday at the age of 87.

When a redacted version of special counsel Robert Mueller's report on Russian interference in the 2016 election was released to the public and Congress on Thursday, the effects of Russian influence efforts through social media became clearer.

Part of the information in the report included examples of material that Russian trolls used, and one particular image stood out to Ronnie Hipshire, a retired coal miner in West Virginia.

Christians around the world gathered on Sunday to mark the end of Holy Week and celebrate Easter.

Festivities took on many forms. While some worshippers reenacted the Passion of the Christ, others gathered for candlelit services or colorful processions.

The world's largest plane by wingspan took its first flight on Saturday above the Mojave Desert in California.

With a wingspan wider than the length of an American football field, the plane features six turbofan engines, a dual fuselage design and was made using parts from two Boeing jets, according to The New York Times.

Tiger Woods won his fifth Masters title on Sunday, marking an incredible comeback from injury and personal hardship that ended a nearly 11-year-long championship drought.

Woods finished the final round of his 22nd Masters appearance 13 under par, winning the tournament by a single stroke over Xander Schauffele, Dustin Johnson and Brooks Koepka, who were tied for second place.

Updated at 8:38 p.m. ET

Severe weather that moved across the southern U.S. on Saturday left at least eight people dead, injured dozens of others and ravaged numerous homes in its path.

Two children, ages 3 and 8, were killed in eastern Texas when a tree fell on the car in which they were traveling. Angelina County Sheriff Greg Sanches said in a statement that the children, who were in the car with their parents during the storm, were pronounced dead on the scene.

A cruise ship off Norway's western coast was evacuating its 1,300 passengers after losing power and issuing a mayday call on Saturday.

Helicopters and boats were helping with the evacuation, which is expected to continue for many hours, The Associated Press reported.

Updated at 9:00 a.m. ET Sunday

As the floodwaters from Cyclone Idai have started to recede, the death toll has risen to more than 600 across Mozambique, Zimbabwe and Malawi and is expected to continue to grow.

As a new Congress prepares to convene in a deeply polarized capital, many Americans are worried that divisiveness is becoming a national contagion.

On social media, as well as in real life, the will to listen to the other side appears to be lost. There's a lot of talk about civility — and incivility — and who gets to define what those words actually mean.

So we want to know: how is all of this playing out where you live?

Roll over Spot, Buddy and Rover. Say hello to Cardi B, Harry and Groot! These are just some of 2018's popular names for dogs.

Kate Jaffe is a dog name curator for Rover, the dog and cat service provider. She says that this year pop culture dog name names are in.

"We saw the royal wedding surging as inspiration for dog names," she says. "In fact, dogs named Harry and Meghan were both up about 130 percent this year."

Gibbon Ridge at the National Zoo is a little less lively this weekend after Muneca, a 51-year-old white-cheeked gibbon, was euthanized on Friday.

Muneca lived a long life for a gibbon, which typically live to be around 30 in the wild. The zoo says that at 51, Muneca was the oldest of her species in the Association of Zoos and Aquariums' Species Survival Plan population.

White-cheeked gibbons are critically endangered and the population decreased by an estimated 80 percent throughout Muneca's lifetime because of loss of habitat.

When Vogue unveiled its annual fashion issue earlier this month, the Internet took notice — not just because Beyoncé graced the cover but also because of the photographer behind the image.

That credit goes to Tyler Mitchell, a 23-year-old from Atlanta who became the first African-American photographer to shoot a Vogue cover in the magazine's 125-year history.

India's southern state of Kerala may get some much needed relief in the coming days as the forecast shows less rain for the area that has been dealing with deadly monsoon floods for more than a week.

More than 350 people have died and at least 800,000 others have been displaced, according to The Associated Press. But there are fears that the number of dead could increase as rescue and recovery efforts continue.

Reporting from Mumbai, NPR's Lauren Frayer says that, "tens of thousands of people have been rescued from flooded homes ... but many more are stranded."