John O'Sullivan, friend and former advisor to Maggie Thatcher, said virtually the same thing about Palin when he drew parallels between Palin and Thatcher in the WSJ. He said they both had the ability to rise to the big occasions. He called it "the mark of a star".
It's so timely in fact (considering it was written last year), I'm going to post it on my blog later today.
Thx much!