Ivanka Trump used a personal email account to send hundreds of messages discussing official White House business last year, officials confirm.
A review into her emails revealed she had used her private address to contact government officials.
Ms Trump sent the emails before she was briefed on the rules, her lawyer says.
In 2016, her father Donald Trump accused Hillary Clinton of putting the US “in danger” over her use of a private email while secretary of state.
- Ivanka Trump and Kushner income revealed
- Kushner security clearance restored
- Ivanka accused of tweeting ‘fake’ Chinese proverb
On Monday, The Washington Post reported that while Ms Trump’s emails contained mostly logistical and personal information, some may still have been in violation of federal records rules.
How serious is this?
A Trump administration official told CBS News that Ms Trump’s emails did not contain classified information, and what had occurred was basically a lack of understanding of the rules.
Ms Trump stopped using her personal address for government correspondence after she was informed that she should not be doing so, the official said.