Donald Trump met with Israel's Prime Minister Benjamin Netanyahu privately at the GOP nominee's Trump Tower on Sunday, vowing to "finally accept the longstanding congressional mandate to recognize Jerusalem as the undivided capital of the State of Israel."

In a statement from the Trump campaign, they also discussed "at length Israel's successful experience with a security fence" – an issue Trump has made a cornerstone of his campaign – as well as "the nuclear deal with Iran, the battle against ISIS and many other regional security concerns."

Netanyahu was accompanied to the meeting by Israel's ambassador to the United States Ron Dermer, and Trump was joined by his son-in-law Jared Kushner, The Jerusalem Post reported.

Netanyahu is scheduled to meet Democratic Presidential Candidate Hillary Clinton later Sunday before flying back to Israel.

In the statement, Trump described U.S. military assistance to Israel as an "excellent investment," and Middle East peace can only be achieved when "the Palestinians renounce hatred and violence and accept Israel as a Jewish State."

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