wasserman shut who is standing by live. a facebook co-founder unfriends the united states of america on giving us his u.s. citizenship could save him hundreds of millions of taxes when the company goes public. i m wolf blitzer. you re in the situation room. captions by vitac www.vitac.com democrats have been betting on a big gender gap to give president obama an edge in the november election, they ve accused republicans of a war on women and president obama has been going all out to kort female voters, but suddenly a new poll suggests it s mitt romney who may have an edge among women. let s go to brianna keilar. should the president be worried that he s potentially losing his critically important edge with women? reporter: wolf, it may be too soon to tell. these poll numbers may not tell the entire story. if we take a look at the poll by cbs news and new york times it does show romney 2 percentage points ahead. one reason to look at this very carefully is because ot