President Trump’s daughter, Ivanka, filled in for him at a meeting of G-20 leaders in Hamburg on Saturday so he could conduct one-on-one meetings on the sidelines. Ivanka Trump was seen sitting in her father’s place next to British Prime Minister Theresa May and Chinese President Xi Jinping in a photograph posted to Twitter by Svetlana Lukash, Russia's sherpa to the G0-20. Lukash later deleted the photo. An official cited by Bloomberg on Saturday said this was not the first time she filled in for him, and that she’s been silent when she occupied his place on at least two other occasions. The move has raised eyebrows among critics who say it was unorthodox to see the U.S. represented by the president's daughter at such a high-level meeting. A spokesman for Ivanka Trump said she had only “briefly” joined the table when Trump had to step out. The spokesman also noted that other leaders had aides occupy their seats when they had to leave the room.