President Trump wrote that if Chelsea Clinton had been "asked to hold the seat for her mother, as her mother gave our country away, the Fake News would say CHELSEA FOR PRES!" The president was referring to the attention given to Ivanka Trump's presence alongside G-20 leaders when she occupied his seat after he left for bilateral meetings.
In response, Chelsea Clinton tweeted, "It would never have occurred to my mother or my father to ask me," adding, "Were you giving our country away? Hoping not."
While members of a leader's delegation are occasionally called upon to sit in during such summits if the leader must be elsewhere, Ivanka Trump's presence amplified the ongoing criticism by some of the role of the president's family members in his administration. Both Ivanka Trump and her husband, Jared Kushner, serve the president as unpaid employees, as an adviser and senior adviser, respectively.
Last week, a White House official told ABC News, "Ivanka was sitting in the back and then briefly joined the main table when the president had to step out and the president of the World Bank started talking as the topic involved areas such as African development, areas that will benefit from the facility just announced by the World Bank."
Chelsea Clinton was an active presence on the campaign trail as her mother pursued the presidency in 2008 and 2016.
ABC News' Jordyn Phelps contributed to this report.