Trump visited the Western Wall in a private capacity and was not accompanied by any Israeli leaders.
He arrived at the site accompanied by his wife Melania, daughter Ivanka and Jewish son-in-law Jared Kushner.
Respecting the Jewish custom, he and Kushner visited the men's prayer area, and Melania and Ivanka visited the women's section. The two sections are separated by a barrier.
Trump paused in front of the wall and then slipped a note with a prayer between its stones, as is custom. He then stood by the wall for several minutes silently with his right hand resting on its blocks. He smiled briefly and removed his hand.
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The Western Wall is the holiest site where Jews can pray. It is situated below the Al-Aqsa mosque compound, considered to be Islam's third-holiest site after Mecca and Medina.
Security was tightened in and around the area with all the major roads in Jerusalem completely gridlocked.