The Secret Service warned the Obama family in mid October that they had seen a dramatic increase in the number of threats against the Democratic candidate, coinciding with Mrs Palin's attacks.
The attacks provoked a near lynch mob atmosphere at her rallies, with supporters yelling "terrorist" and "kill him" until the McCain campaign ordered her to tone down the rhetoric.
Irate John McCain aides, who blame Mrs Palin for losing the election, claim Mrs. Palin took it upon herself to question Mr Obama's patriotism, before the line of attack had been cleared by Mr McCain.
That claim is part of a campaign of targeted leaks designed to torpedo her ambitions, with claims that she did not know that Africawas a continent rather than a country.
The advisers have branded her a "diva" and a "whack job" and claimed that she did not know which other countries are in the North American Free Trade Area, (Canada and Mexico). They say she spent more than $150,000 on designer clothes, including $40,000 on her husband Todd and that she refused to prepare for the disastrous series of interviews with CBS's Katie Couric.