At the NYT, Frank Rick points out that Christine O’Donnell is quite useful to the Republican Party because she gives the heart and soul of the party cover:

By latching on to O’Donnell’s growing presence, the Rove-Boehner-McConnell establishment can claim it represents struggling middle-class Tea Partiers rather than Wall Street potentates and corporate titans. O’Donnell’s value is the same as that other useful idiot, Michael Steele, who remains at the Republican National Committee only because he can wave the banner of “diversity” over a virtually all-white party that alternately demonizes African-Americans, Latinos, gays and Muslims.