Democrats on Twitter more liberal, less focused on compromise than those not on the platform  —  The political views and primary candidate preferences of Democrats on Twitter differ from those who are not on the platform, according to a Pew Research Center survey conducted in January.

What Is the Election Needle?  And Why Will We Have 4 of Them Tonight?  —  A closer look at our election forecaster before the Iowa caucuses.  —  Shortly before 9 p.m. Eastern on Monday, we expect the first returns from the Iowa Democratic caucuses.  If you choose to follow the results live tonight …

Iowa Road Trip: Do Reporters Know Anything?  —  DES MOINES—What's going to happen?  —  The Uber driver, learning my occupation, wants to know.  So, too, newsroom colleagues who cover beats other than politics.  So, too, family members, who not unreasonably imagine that I must have gained some insight by leaving them to travel here.

Pork Plant Workers Turn Out for Sanders in First Caucus in Iowa  —  The first caucus in Iowa was held at noon at a union hall in Ottumwa, about an hour and a half from Des Moines, where meatpackers and other workers unable to vote in the evening's official caucuses were given the chance to cast ballots at a satellite caucus.