Former National Security Advisor Jake Sullivan said on Wednesday that the “case for withholding weapons from Israel today is much stronger than it was one year ago,” adding that he now backs such efforts.

“The thing that we were grappling with throughout all of 2024, which is not the case today, is that Israel was under attack from multiple fronts,” Sullivan, who served under President Joe Biden, told The Bulwark’s Tim Miller. “It was under attack from Hezbollah, from the Houthis, from Syria, from Iraq, obviously from Hamas and from Iran itself. So the idea of saying, ‘Israel, we’re not going to give you a whole set of military tools’ in that context was challenging.”

“The case for withholding weapons from Israel today is much stronger than it was one year ago,” Sullivan added. “One, they don’t face the same regional threats. Two, there was a ceasefire hostage deal in place and the ability to have negotiations, and it was Israel who just walked away from it without negotiating seriously. Three, there is a full-blown famine in Gaza. And four, there are no more serious military objectives to achieve. It’s just bombing the rubble into rubble.”

Sullivan, who was tapped as the inaugural Kissinger Professor of the Practice of Statecraft and World Order at the Harvard Kennedy School, suggested that the political makeup of the Israeli government could affect the future of the U.S.-Israel relationship.

“If nothing changes in their government — if it continues to be a far-right government that pursues the same policies — then it won’t be the Israel we’ve known,” Sullivan said. “I think a lot of Israelis would say they wouldn’t recognize that Israel. And obviously, that should have an impact on the relationship.”