Democratic presidential candidate Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE will skip next week's AIPAC conference, making him the only presidential candidate in either party not to address the major pro-Israel conference.

The Vermont senator said in Friday letter to AIPAC head Robert Cohen that he could not make the conference in Washington.

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"I would very much have enjoyed speaking at the AIPAC conference. Obviously, issues impacting Israel and the Middle East are of the utmost importance to me, to our country and to the world," he wrote. "Unfortunately, I am going to be traveling throughout the West and the campaign schedule that we have prevents me from attending."

Sanders said that he would send remarks to AIPAC on Monday and asked the group to give those remarks to conference-goers.

His letter notes that candidates aren't allowed to address the conference remotely.

Rival Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE and GOP candidates Ted Cruz Rafael (Ted) Edward CruzSenate Republicans face tough decision on replacing Ginsburg Cruz: Trump should nominate a Supreme Court justice next week Renewed focus on Trump's Supreme Court list after Ginsburg's death MORE, John Kasich and Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE will all speak to the conference.

Sanders is the only Jewish candidate in the race and is running to become the first Jewish president.