In the Democratic presidential race, the talk in the air may have been focused this past week on whether Vice President Joe Biden will run, but there’s an intense ground game underway in Iowa on behalf of some of the candidates already in the race.

Hillary Clinton’s campaign is disclosing the scope of her own ground game: 30 more grassroots organizers were hired last week. Clinton’s squad of paid community-level organizers in Iowa is now at 78. Matt Paul is the state director for Clinton’s campaign.

Campaign officials say the group underwent a month-long interview process and the 30 new staff members will complete two more days of training before being dispatched to their final assignments.

The local staff are becoming part of the local political scene and critical to coming up with an accurate count of those who are solid supporters of a candidate, those who are leaning in a certain direction and those who will wait until the last minute to decide.