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The Massachusetts senator now occupies an awkward middle ground in the presidential race. She has a large and enthusiastic base but hasn't been able to present a real challenge to the front-runners.
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The billionaire former New York City mayor skipped the early-state contests in favor of a national campaign strategy funded entirely from his personal fortune.
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Fourteen states, a third of all delegates and an emerging race between Sen. Bernie Sanders and former Vice President Joe Biden. Here's what to know about the 2020 contests.
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The biggest day of the primary season began in the mid-to-late 1980s when Southern Democrats pushed their states to move up to try to stop whom they saw as liberal candidates who couldn't win.
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A lot is on the line in the 2020 primary debate. It might be the last chance for moderates to slow Bernie Sanders' momentum. And who comes out better — Joe Biden or Michael Bloomberg? Here's a guide.