The Maryland primary was today. I just did a Google and I'm seeing that Clinton and Trump have been declared winners with 0% reporting. trump wins Maryland primaries How is that possible? I understand projections but at this point are they going solely off projections or is there real data backing those "winner" declarations?


It's based on pre-election polling, demographics, exit polls, absentee ballots, unofficial voting tabulation, and any other influential political issues. They then use a combination of political science and statistical analysis to make the call.

See: AP and CNN.

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    I gave you the tick, but would you mind expanding your answer a little more, by adding a sentence to explain each item (i.e. exit polls - these are surveys that are done as people are exiting the polls, asking them who they voted for) etc.? – n00b Apr 27 '16 at 21:39
  • It's kind of hard to expand my answer because the given way an outlet chooses to call the race is ultimately what they think is best. – user1086516 Apr 27 '16 at 22:20
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    Right I'm just asking you explain the different options you listed – n00b Apr 27 '16 at 22:21

If there's zero votes reported, computers may just choose the "default" candidate (frontrunners Trump and Clinton) as the winner and have them win all the delegates.

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