A reader writes,
What Yglesias doesn’t discuss is WHY this might be the case. Sorting is part of it, but one interesting and often overlooked dimension is the end of earmarks. It used to be you could buy votes for middle-of-the-road legislation by getting pols to cash in whatever principles they had for funding for a bridge or a hospital or day care center with earmarked $$$. You can’t do it anymore. So now pols are more responsive to movement political forces and donors. I’m not sure which system is better or worse, but it certainly has been a part of the recent dynamic.
Actually, I think Yglesias is speaking to this. I think he would say (or at least could say) is that the price of buying a vote with earmarks has gone up. Moreover, the reason that it has gone up is that there are now well-sorted, politically-engaged, ideologically-driven groups out there. That is, the inability of centrist leaders to use earmarks to obtain legislation is not some causal force that appeared out of nowhere. It is the result of the forces that have created ideological polarization.
A commenter writes,
What would such an example [of insiders not winning] … It can’t just be a lot of incumbents losing power; I anticipate you would simply characterize that as one group of insiders being replaced with another.
Right, it’s not about who wins elections. It’s about the farm lobby controlling farm subsidies (including food stamps), the teachers’ unions controlling education policy, the real estate lobby controlling housing policy, Wall Street controlling financial regulation (as actually implemented), health care providers controlling health care policy, and so on. Those are the real insiders. You know that insiders have been defeated when consumers win and rent-seekers lose.
Anyway, my original point is that while more partisanship might be changing the dynamics between centrist and non-centrist legislation, it is not changing the dynamics between insiders and outsiders. And, while I have not read This Town, to which Yglesias referred in his original post, the commentaries on it suggest that it speaks to the issue of insiders and outsiders.
By the way, this week’s econtalk also is on the topic of polarization. The guest, Morris Fiorina, seems to me to offer support for Yglesias.