She was echoing what majority leader Boehner said - that the bill would have passed if Pelosi hadn't given that nasty speech. IOW, that Pelosi's nasty speech caused sufficient Republicans to change their vote, and swing the ultimate outcome. That assertion is a Republican assertion, made by minority leader Boehner before Pelosi "blamed it on Republicans."
Really, than explain the 95 Dem no votes- Pelosi’s speech may have had some of the Repubs voting no but most of them did it because its a bad bill.