People who want to learn more about the Iowa Democratic Caucus are invited to a mock caucus on Tuesday, Jan. 21, at 7 p.m. in the DeWitt Learning Commons of Northwestern College. The mock caucus is being co-hosted by the Northwestern Campus Democrats student club, the Sioux County Democrats, and the O’Brien County Democrats. Refreshments will be served. The Jan. 21 mock caucus is part of Plain Conversation, a monthly educational forum sponsored by the Sioux County Democrats. The mock caucus will proceed like a real Iowa Democratic caucus, with a time for questions at its conclusion. Voter registration will also be available at this event.