NYT Upshot released the results of a new poll, in which respondents from Illinois were asked for whom they will vote: Democrat Hillary Clinton or Republican Donald Trump.
NYT Upshot poll results
The poll was in the field. The sample size was 0 participants.
Putting the results in context
In general, however, you should not have too much faith in the results of single polls, because they can incorporate large errors. At least, one should examine how a poll's results compare to benchmark forecasts.
For the following comparison, we translate Clinton's and Trump's raw poll numbers into two-party vote shares. This yields figures of 0.6% for Clinton and 0.0% for Trump.
Comparison to other polls
When compared to the average results of other polls Clinton performed worse with 0.0 percentage points, while Trump did better with 0.0 percentage points. The most recent PollyVote predicts Clinton to gain 42.4% and Trump % of the two-party vote in Illinois.