Sanders accused her of pandering to Israel after she said that “if Yasir Arafat had agreed with my husband at Camp David,” there would have been a Palestinian state for 15 years.

Hillary may be right that Bernie is building socialist castles in the sky. But Bernie is right that Hillary’s judgment has often been faulty.

She has shown an unwillingness to be introspective and learn from her mistakes. From health care to Iraq to the email server, she only apologizes at the point of a gun. And even then, she leaves the impression that she is merely sorry to be facing criticism, not that she miscalculated in the first place.

On the server, she told Andrea Mitchell of NBC News that she was sorry it had been “confusing to people and raised a lot of questions.” She has never acknowledged, maybe even to herself, that routing diplomatic emails with classified information through a homebrew server was an outrageous, reckless and foolish thing to do, and disloyal to Obama, whose administration put in place rules for record-keeping that she flouted.

Wouldn’t it be a relief to people if Hillary just acknowledged some mistakes? If she said that her intentions on Libya were good but that she got distracted by other global issues and took her eye off the ball? That the questions that should have been asked about Libya were not asked and knowing this now would make her a better chief executive?

Obama, introspective to a fault, told Chris Wallace of Fox News that not having a better plan after Muammar el-Qaddafi was overthrown was the worst mistake of his presidency. But as usual, Clinton, who talked Obama into it, is defiantly doubling down. As her national security advisers told Kim Ghattas for a piece in Foreign Policy, Clinton “does not see the Libya intervention as a failure, but as a work in progress.”

Clinton accused Sanders of not doing his homework on how he would break up the banks. And she is the queen of homework, always impressively well versed in meetings. But that is what makes her failure to read the National Intelligence Estimate that raised doubts about whether Iraq posed a threat to the U.S. so egregious.