VOTE 2012 -- January 3, 2012 at 1:44 PM EDT
Viewer's Guide to the Iowa Caucuses
Mitt Romney greets supporters during a rally Monday at the Weber Paper Company in Dubuque, Iowa. Photo by Chip Somodevilla/Getty Images.
On Tuesday evening, Iowa's Republicans will gather at 1,774 precincts to select their choice to be the GOP's presidential nominee.
Join the PBS NewsHour live online and on air as we report on the results from the caucuses -- and what they mean for the race for the Republican nomination.
Watch the PBS NewsHour live from 6 to 7 p.m. ET, the West Coast edition from 9 to 10 p.m. ET and a results special from 11 to 11:30 p.m. ET -- here or on your local station's website.
See the links below for what to watch for and how to follow along tonight:
Follow live results in our Vote 2012 map center .
Gwen Ifill shares the five things to watch for in the Iowa results.
Catch up on all of the candidates' views with this series of NewsHour interviews.
Follow the PBS NewsHour's politics team on Twitter as they tweet from Iowa.
Subscribe to The Morning Line for the latest politics news delivered to your inbox every morning.