"Our research shows that those who attend caucuses are not only a smaller group; they are also much more ideologically extreme than voters who participate in primaries."
I believe it would be more accurate to characterize the caucus attendees (and especially the delegates elected in caucuses) to be those members of the public who are the angriest and have the most adrenaline. In a normal election, this set of people tends to be those who are ideologically extreme, as the article states. But this is not a normal election. We have people who are mad as hell (and not going to take it anymore) who are supporting a candidate whom "conservatives" claim is a "moderate." Just because Cruz is the more extreme candidate may not mean that his supporters have the most adrenaline.
I caucused in Iowa in 1992 and 1996.
Anger? Adrenaline? Ideologically extreme?
Never saw it. Never heard it.
The Parties caucus in separate rooms, so I can’t comment on the Democrat Caucus.
I actually can’t recall who won the Democrat Caucus in 1992 - I think Clinton lost.