The world of Westeros is back in the spotlight as filming for the "Game of Thrones" prequel is underway -- and in a location fans know very well.

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As President Donald Trump heads to Florida on Tuesday to officially declare his reelection bid in 2020, he's trailing multiple top Democratic candidates in the battleground Sunshine State, according to a new Quinnipiac poll.

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• Trump fights to regain 2020 spotlight with Orlando launch • Opinion: Five keys to Trump re-election bid • Analysis: Trump launches immigration rant in bid to rekindle 2016 rage

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• New Jersey man dead after falling ill in Dominican Republic, family says • Another American tourist died in her hotel room in the Dominican Republic, resort says

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The British research submarine Boaty McBoatface has made an impressive debut in the scientific arena, discovering a significant link between Antarctic winds and rising sea temperatures on its maiden outing.

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Iran's Ministry of Intelligence said on Tuesday that the country has managed to "deal a heavy blow against America's international spy network."

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President Donald Trump formally launched his reelection campaign Tuesday night, rallying supporters with a speech that made clear he plans to run on the same formula that narrowly delivered him the presidency in 2016.

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The need for a pulse-ox device becomes extreme in the hospital when a patient who had been stable suddenly gasps for breath and begins to turn blue. A pulse-ox is a small piece of equipment that clamps onto a patient's finger and registers her oxygen level. Some cost a couple hundred dollars, but the cheapest retail for around $20. When I worked at a teaching hospital in the UPMC system in Pittsburgh, my hospital floor usually had two or three of these devices, and though we nurses begged for more, we were always told the money wasn't "there" in the budget, despite our hospital system's obvious wealth (operating revenues of $14 billion in the first nine months of 2018).

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Suicide rates among young people have continued to soar in recent years -- so much so that the rate among 15- to 24-year-olds climbed in 2017 to its highest point since 2000, new research has found.

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Fake meat may be a real bubble. Shares of Beyond Meat surged nearly another 10% in early trading Tuesday after the plant-based protein company announced plans to start selling "ground beef" in grocery stores.

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Climate change may lead to unlikely illnesses in unexpected places, new research suggests: In the past two years, five cases of Vibrio vulnificus, a flesh-eating bacterial infection spread by handling or eating contaminated seafood, have been tied to Delaware Bay, where water temperatures have been on the rise in recent years, according to a study.

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Europe signaled Tuesday that it could return to printing money to boost its flagging economy, a potential reversal of policy that drew an immediate rebuke from President Donald Trump.

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NASA spacecraft OSIRIS-REx, which has been orbiting the asteroid named Bennu, just broke a record in order to capture this image.

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During the last two months, I've done over 40 events supporting Democrats running for office in Virginia's 2019 elections. Despite the proximity of Northern Virginia to Washington, DC, it feels like a world apart. Instead of questions about impeachment or socialism or Russia, Virginia Democrats want to hear solutions on the cost of health care, fixing roads and improving K-12 education.

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