"The Iowa Caucus: A Guide to the Needle's Return"

The New York Times will be publishing a live estimate of the final result of the Iowa caucus, known as the Needle, after 8 p.m. Eastern tonight. The live estimates will show each candidate's final vote share along with a range of estimates, and will also include a focus on the race for second place and county-by-county maps showing where votes remain to be counted. The Needle considers where the remaining vote is located and which candidate is faring better than expected.