Footage appears to show Melania Trump swatting away her husband's hand as he reached for it during their trip to Israel.
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The interaction unfolded between the couple as they arrived in the country on Trump's first trip abroad as president.
The first couple later held hands at the church of the Holy Sepulchre as she walked down the stone steps.
Trump became the first sitting US president to visit the holy Wailing Wall in Jerusalem. He will also travel to Vatican City to meet with Pope Francis.