By Betsy Klein, CNNNew York (CNN) — First lady Melania Trump hosted world leaders’ spouses on the sidelines of the United Nations General Assembly on Tuesday, announcing the launch of a new coalition on children’s well-being and artificial intelligence safety that she said she hoped they would join. An adviser to Trump downplayed any significance or change to US policy, describing the meeting as an informal hello to be polite. In recent months, President Donald Trump has commented on his wife’s strong reactions to watching the war unfold on TV. When Zelensky visited President Trump in August, he delivered another letter, a personal appeal from his wife to the first lady, the contents of which have not been shared publicly. On Tuesday afternoon, with Zelenska in the audience of VIP spouses, Melania Trump unveiled her “Fostering the Future Together” initiative (which is not related to her “Fostering the Future” initiative on opportunities for foster children).