Here’s what the Loop is reading Tuesday:

Secretary of Homeland Security Janet Napolitano has big ambitions. (Astrid Riecken/For The Washington Post)

Thinking big — Homeland Security Secretary Janet Napolitano has ambitions beyond the Cabinet.

Filibustering their own — Former senator Chuck Hagel’s path to confirmation as secretary of defense is looking bumpy: Senate Republican Leader Mitch McConnell indicates the GOP could filibuster him — something that’s never happened to a Cabinet nominee. (Um, and Hagel’s a Republican!)

Tagg’s not it — We’re sad that the Tagg-for-Senate fever turned out to be just a 24-hour bug. To the chagrin of headline writers, the Romney progeny is not running.

Losing count — Our pal, the Fact Checker, takes a closer look at that NRA claim that there are 20,000 gun laws on the books.