Nuclear negotiations break down between Reid and Frist, setting the stage for a cataclysmic Senate meltdown this week over Karl Rove’s pet judge, Priscilla Owen. (That is, unless the Ben Nelson-John McCain compromise — which seems a considerable capitulation by the Dems — gains currency with the GOP.) Can Catkiller really have the votes? Surely, there are more than three so-called “conservatives” in the Senate who would vote against this type of radical rule change. Or has the GOP sunk so low? Update: A few days old now, but ah well: Salon offers a handy nuclear primer.