Sioux City Caucus Precinct 6 Chair Steve Warnstadt brought a homemade candidate viability chart to the caucus. Even though it's handwritten, it's official.
About viability: At 7 p.m. local time (or 8 p.m. ET), all of Iowa's 1,678 precinct locations will shut their doors to start voting. As they begin, neighbors will hear messages from the state party chair, local officials and possibly campaign representatives. They will then show their first preference for president.
Voters will split up into different sections of the room dedicated to their presidential candidate of choice. Typically, a candidate needs 15% of the vote to remain viable, as determined by the amount of people participating in the precinct location. Smaller locations may have different viability thresholds.
If a candidate is not viable, their voters can realign to another viable candidate or join together to create a group in support of another candidate that meets the threshold.
