April 7, 2014
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Former Massachusetts Senator Scott Brown (R) will on Thursday formally launch his comeback campaign to represent neighboring New Hampshire in Congress' upper chamber. There's only one problem: Whoever submitted Brown's paperwork to the Federal Election Commission forgot to check off a party affiliation.

Brown's campaign told The Washington Post it was an "administrative oversight," saying that the mistake would be corrected within the week. Jon Terbush

9:40 p.m. ET
Andrew Caballero-Reynolds/AFP/Getty Images

On Sunday in Providence, Rhode Island, the Ringling Brothers and Barnum & Bailey Circus held its final performance with elephants.

Animal rights groups have been calling on the circus to discontinue the act for years, and originally, the elephants were going to be retired in 2018. "It's an end of an era that should have ended a long, long time ago," Elinor Molgebott with the Humane Society of New York told CBS News. "This is so unnatural for them. They shouldn't be subject to abuse."

Now, 11 elephants will be retired to Florida, where they will live at a 200-acre conservation center run by the owner of Ringling Brothers. The circus company has used elephants for the last 145 years, and said it will continue to showcase lions, tigers, horses, and kangaroos in animal acts. "It is a bittersweet decision, there is no question about that, but it is the best thing," Kenneth Feld, chairman of the parent company who owns Ringling Brothers, said. "And we felt this was the right time to do it." More than 12 circuses continue to tour with elephants. Catherine Garcia

8:44 p.m. ET
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Puerto Rico will default on $422 million in debt payments due Monday, Gov. Alejandro Garcia Padilla announced Sunday, adding the "decision not to pay has been a very difficult one, and one that frankly I would rather not take."

In a televised address, Garcia said Puerto Rico is "faced with the lack of liquidity to meet both the needs of our creditors and to provide services to our people. I had to choose. And I chose." Government officials spent the weekend attempting to negotiate with creditors, and some payments have been postponed for the time being. Another $700 million is due to creditors in early July.

Puerto Rico is home to 3.5 million people, and has an unemployment rate of 12.5 percent. White collar professionals and members of the middle class are moving away from the island, and with one doctor a day leaving, health care is in "crisis," Dr. Jaime Rivera, president of the Puerto Rico Hospital Association, told NBC News. Catherine Garcia

8:20 p.m. ET
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Hundreds of protesters who stormed Baghdad's fortified Green Zone on Saturday to demand an end to corruption left Sunday, following an order from the man who sent them there, Shiite cleric Moktada al-Sadr.

The influential cleric said he was asking them to leave out of "respect" for a Shiite pilgrimage underway, but said they would be back on Friday if their demands weren't met. In a statement, al-Sadr, who has demanded Parliament meet for a new cabinet soon or else he will call for the dissolution of the government and early elections, asked the protesters to leave peacefully, clean up after themselves, and chant for a unified Iraq, not sects. Many of the protesters blamed the United States for the political system in place and its sectarian quotas, The New York Times reports, and in a joint statement, Prime Minister Haider al-Abadi, President Fuad Masum, and Salim al-Jubouri, the speaker of Parliament, condemned the damage done to the Parliament building and said they will continue to meet to "assure progress in reforming the political process."

The Green Zone is usually off limits to ordinary citizens, and protesters gathered in Celebration Square, once Saddam Hussein's parade grounds, and swam in pools. "I used to hear about the Green Zone and used to ask myself and my friends, 'What does the Green Zone mean?'" Ali Mustafa, 21, told the Times. "Entering the Green Zone was like a dream for me." Catherine Garcia

1:00 p.m. ET

Princess Charlotte, the daughter of Prince William and Kate Middleton, is set to turn 1 on Monday. What would a royal birthday be without some formal photos to celebrate? Kensington Palace shared a few gems of the tyke Sunday:

Nice camera work, Kate.

Could she be any cuter?

Time flies. Julie Kliegman

12:01 p.m. ET
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Democratic presidential hopeful Bernie Sanders raised $25.8 million in April, the campaign said Sunday. That's a sharp drop from the $44 million he pulled in in March.

The campaign put a positive spin on the news, noting it surpasses the campaign's monthly average of $17 million.

Hillary Clinton holds a large delegate lead over Sanders in the Democratic presidential race. In April, the struggling Sanders campaign announced layoffs of hundreds of staff members. Julie Kliegman

11:21 a.m. ET
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Malia Obama will attend Harvard University in 2017 after taking a gap year, President Obama and First Lady Michelle Obama announced Sunday. The decision to take a year off will theoretically lessen the spotlight in college, as her father will be out of office well before she starts classes.

Harvard's acceptance rate this year was just 5.2 percent, the lowest in the institution's history, The New York Times reports. Obama will join a storied club of presidential children that have attended Harvard as undergraduate or graduate students, which includes figures ranging from Robert Lincoln to George W. Bush. Julie Kliegman

10:58 a.m. ET

In April, Democratic presidential frontrunner Hillary Clinton and New York City Mayor Bill de Blasio (D) made a seriously uncomfortable joke at a comedy show.

Here's a quick refresher: De Blasio, joking about his chronic lateness, said he was running on "CP Time." Colored People's Time has long been a reference to the racist stereotype that black people are frequently late. Clinton jumped in, jokingly claiming the acronym really means "Cautious Politician Time."

President Obama took Clinton and de Blasio to task Saturday during his speech at the White House Correspondents' Dinner. He apologized for being late and said he was running on CPT, which stands for "Jokes That White People Should Not Make." Watch the zinger below. Julie Kliegman

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