The New York Times reports:
A Democratic super PAC wanted to undermine Senator Bernie Sanders’s presidential candidacy just days before the Iowa caucuses. It may have handed him a gift instead. Mr. Sanders’s campaign said on Wednesday that it had raised more than $1.3 million since it began fund-raising the day before off a negative ad produced by the super PAC that targets Mr. Sanders by name.
The ad, backed by the political action arm of the group Democratic Majority for Israel, argues that Mr. Sanders, of Vermont, would be unable to beat President Trump in the November general election, citing his heart attack nearly five months ago and his left-wing ideology as evidence that he would be too risky a choice for Iowa caucusgoers focused on winning back the White House.