Si, our friends at the Wall Street Journal edit board ought not get too excited about the win.

One immigration-debate watcher put it this way to me this morning: “Tancredo’s not happy, but the open borders crowd shouldn’t be either — though they’ll spin it in their favor. It showed that Republicans need to be cognizant of their right flank, of the broad desire for strong border security, and that amnesty proponents can’t take even the safest of seats for granted. Yes, he won by a strong margin, but he also had a challenger in the primary that got nearly half the votes on a single-issue platform. There’s plenty of warnings to go around.”