Newly elected Mayor Martin O'Malley (left) waves to supporters in Baltimore in November 1999. Gail Burton/AP hide caption

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Black Lives Matter activists confronted Democratic candidates Martin O'Malley and Bernie Sanders at a Netroots Nation event earlier this month. O'Malley used the phrase "all lives matter" twice, which he later apologized for. Ross D. Franklin/AP hide caption

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Republican presidential hopeful Donald Trump in front of his campaign plane in Laredo, Texas, last week. LM Otero/AP hide caption

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Dan Tothill, 26, and Megan Brabec, 24, are struggling with high student debt burdens and underemployment. "I hope that I can look back on myself in 10 years, like 'Oh, I was so silly to be worrying about that," Tothill said. "But, at this point, it doesn't feel that way at all." Jesse Costa/WBUR hide caption

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Anti-abortion activists held a rally opposing federal funding for Planned Parenthood in front of the U.S. Capitol on Tuesday. Olivier Douliery/Getty Images hide caption

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President Obama speaks in Ethiopia. While there, he noted that in the U.S., presidents can't run for more than two terms. But if they could, he said, he'd win. Mulugeta Ayene/AP hide caption

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Dana Bowerman's lifelong best friend Michelle Elliott holds a photograph of the two together. Bowerman is serving a nearly 20-year sentence for federal drug conspiracy charges. She was holding out hope for clemency for nonviolent drug offenders but it is unlikely that she will receive an early release date. Matthew Ozug/NPR hide caption

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Captives separated by a fence conduct communal evening prayers at the Camp 6 prison building at the U.S. Naval Base at Guantanamo Bay, Cuba. Walter Michot/Miami Herald/TNS/Landov hide caption

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Vice President Joe Biden addresses a progressive youth summit in Washington, D.C., earlier this month. Chip Somodevilla/Getty Images hide caption

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