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In their first international trip since becoming Prince and Princess of Wales, William and Catherine will visit the US this week amid an ongoing row with Prince Harry.
The royal couple's attending the second annual Earthshot Prize awards in Boston, headlined by popstar Billie Eilish, which recognises environmental innovators.
But as much as they'll try to focus on the prize, they're likely to face questions about their estranged relationship with Prince Harry and wife Meghan.
Royal correspondent Victoria Arbiter spoke to Corin Dann from New York.