A coalition of progressive organizations has launched a campaign aimed at pressuring Democratic candidates into skipping the annual American Israel Public Affairs Committee (AIPAC) policy conference in Washington.

IfNotNow, MoveOn, Indivisible and the Working Families Party’s #SkipAIPAC effort was kicked off last when Jewish student, and IfNotNow member, Sarah O’Connor asked Senator Elizabeth Warren and Senator Bernie Sanders whether they would attend the event. Warren skipped the conference last year and said she planned to do it again. When O’Connor asked a follow-up question inquiring what Warren would tell candidates who are considering attending, she shifted the topic to a wider discussion about policy.

Sanders also skipped the conference last year and was the only Democratic candidate to skip it in 2016, but surprisingly he didn’t rule out attending this one. “Well if I do go — I don’t think I am, I don’t think it’s going to be on my schedule — but you know, I have no objection to going, but the question is what I say when I get there,” he told O’Connor, “That’s the point. And what I will say is something that I have said for years, and I speak as somebody who’s Jewish, and that is we need a foreign policy in this country, we need a Mideast policy which absolutely protects the integrity and the independence and safety of Israel, but also understands that the Palestinian people have needs and they have got to be treated with respect and dignity. And that is not the case right now. So that is my view. We will treat all people with respect and dignity.”

Joe Biden told IfNotNow that he wouldn’t skip the conference, but that he’d use it to “convince them to change their position.”

AIPAC opposed diplomacy during the Obama admin — but AIPAC lost. The Iran Deal took us off the path to war with Iran, which Trump has reversed. @JoeBiden didn’t convince AIPAC before & he shouldn’t share their stage to offer them legitimacy now. #SkipAIPAC pic.twitter.com/VU4mgmKYAn — IfNotNow🔥 (@IfNotNowOrg) February 10, 2020

South Bend Mayor Pete Buttigieg told the group that he wasn’t sure when the conference was and would have to check his schedule before making a decision.

NEW: "I haven't made any scheduling decisions about that…I don't even know when it is." – @PeteButtigieg when asked if he will join @ewarren and #SkipAIPAC. *Paging @MarkMellman and @DemMaj4Israel* This guy doesn't even know when your — er, @AIPAC's — Conference is 😉 pic.twitter.com/KbXPeIlg8O — IfNotNow🔥 (@IfNotNowOrg) February 10, 2020

Last week, AIPAC pulled four Facebook ads and apologized for running them. The ads targeted “radicals in congress” such as lawmakers Rep. Rashida Tlaib (D-MI), Rep. Betty McCollum (D-MN) and Ilhan Omar (D-MN). One of the ads implied that, by supporting pro-Palestine legislation, these congress members posed a greater threat than ISIS. “It’s critical that we protect our Israeli allies especially as they face threats from Iran, Hamas, Hezbollah ISIS and — maybe more sinister — right here in the U.S. Congress,” it read.

“This is a test of moral leadership for the presidential field,” said Working Families Party National Director Maurice Mitchell said in a statement announcing the launch of their campaign, “AIPAC has given a platform to toxic bigotry and provided cover for right-wing nationalists like Donald Trump and Benjamin Netanyahu. We call on presidential candidates to skip AIPAC’s conference and to embrace a progressive vision where all people, including Palestinians and Israelis, can thrive.”