Palin insider: She's not sure yet if she'll endorse anyone

“I think her principal focus is on crony capitalism and the permanent political class,” the advisor said repeating the phrases Palin uses in her speeches and in a recent op-ed in the Wall Street Journal. “She’s very passionate about this.”

The advisor noted that none of the current crop of GOP candidates are discussing these specific issues: “If you look at the Republican field, no one is picking this up as a topic … They are not addressing this.”

This same focus is what could make an endorsement difficult for Palin. Newt Gingrich was first elected to Congress in 1978 making it hard for him to shake the Washington insider label, and reports the former speaker of the House received millions in consulting fees from Freddie Mac or his health care consultancy could be too much “crony capitalism” for Palin and her loyal supporters.

Other options have similar problems, though.