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Voting concludes Tuesday in Pennsylvania's presidential, U.S. Senate and U.S. House primary contests. Polls close at 8 p.m. ET. Follow the live results.
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Released on Earth Day, the federal government's new "HeatRisk" tool can help people assess when heat goes from uncomfortable to dangerous.
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Pro-Palestinian protesters at Columbia University said today they would not take down their tent encampment.
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Officials with the World Anti-Doping Agency are scrambling to contain an Olympic doping scandal involving Chinese swimmers. Critics say the organization's credibility is in question.
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Legendary Yankees radio announcer John Sterling is retiring. He was honored at a game over the weekend.
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The U.S. is increasingly concerned about the impact of Chinese overcapacity on manufacturing and the impact that will have on American businesses and workers.
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Tennessee Volkswagen workers voted yes to join the UAW union. It was a historic moment could be the turning point for more unionization in the South.
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A historical marker on Maryland's Eastern Shore contains errors about the story of Harriet Tubman, who grew up nearby. Some locals want to fix it, but others think it's fine how it is.
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Another huge patch of seaweed from the Sargasso Sea is floating towards Caribbean and South Florida beaches. Scientists are trying to predict where and when it will reach the shore.
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In Mexico a group of masked people in the state of Chiapas stopped a leading Presidential candidate at a checkpoint. The incident comes amid a spate of political assassinations.
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More than 180,000 historical markers dot the U.S. in a fractured and confused telling of America — where offensive lies live with impunity, history is distorted and errors are both strange and funny.
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The number of people coming from South and Central American is rising and they will eventually arrive at the U.S. Southern border, analysts say.