Happy Birthday to the great Kent Desormeaux, 42. I lived in Washington when Desormeaux was riding in Maryland, and, well, it doesn't get much more dominant than that. (Although I was also in the Bay Area in the 1990s, so there's that).
On to the good stuff:
1. Nate Silver has an excellent overview of the GOP delegate rules; Josh Putnam has an excellent rant about misconceptions about the delegate rules. I'm with Josh about calendar being more important than delegate allocation in this cycle, certainly so far.
2. Really good piece by Greg Marx last week looking at how liberals -- and some in the neutral media -- got Rick Santorum's "phony ideology" comment wrong, and what Santorum was actually saying.
3. Ed Kilgore notes that the only attacks that have worked, and almost the only ones that have been used, in GOP WH 2012 have been from the right .
4. CNN moderators talked the least, Fox moderators the most, during GOP debates. Eric Ostermeier reports a Humphrey School study. I've previous noted that CNN (at least in the early debates; I haven't tracked since then) tended to ask the most straight-up issue questions (that is, what is your position on X). Granted, they do toss away a big chunk on the front end with their silly introductions and the national anthem, but I think on the whole CNN has done the best job.
5. And a wonderful post by Matt Glassman on the occasion of Arizona's 100th birthday, all about how Arizona (and New Mexico) wound up looking like they do now thanks to the politics of the 1850s and 1860s.