And the appointments keep rolling in. Arizona Governor Janet Napolitano (a top pick for many during the veepstakes) has been tapped to be secretary of the Department of Homeland Security. As Politico mentions, border security and illegal immigration are two aspects of the new position that Napolitano has experience in, having taken on those who promote illegal immigration (rather than the immigrants themselves) in her state. 
Nate Silver frames the appointment in terms of loss. Napolitano was expected to run for Senate in 2010 and would run a strong campaign against …