hope I'm wrong but she does not appear like a strong leader as she did at one time...
People have known for awhile that Palin has unofficially endorsed Newt, but that hasn’t helped Newt much. It seems her endorsement power has waned.
Newt came in last in Alaska.
Could be she has held off on a formal endorsement because she plans to run someday and doesn’t want any more official endorsements slapped in her face later on.