WASHINGTON — President Trump, who campaigned in 2016 by aggressively criticizing Hillary Clinton’s use of a private email server, dismissed as “fake news” on Tuesday questions about a similar practice by his daughter Ivanka Trump during her early days working in the White House.

A White House review showed that Ms. Trump sent dozens of government-related emails to and from a private account, and hundreds related to her West Wing schedule, in the first half of 2017.

The review promptly caught the attention of House lawmakers. Representative Elijah E. Cummings, Democrat of Maryland, who is expected to lead the House Committee on Oversight and Government Reform next year, said on Tuesday he planned to investigate the matter, and the outgoing chairman, Representative Trey Gowdy, Republican of South Carolina, asked for details about the review’s findings.

“Ivanka can handle herself,” the president said. “These are all in the historical records.”

He said his daughter’s use of a personal email address was “unlike Hillary Clinton” because of the private server that Mrs. Clinton had in her house. “This was just early on when she came in,” Mr. Trump said of Ms. Trump’s emails. “And it’s all fake news,” he added, using his favorite term for coverage he does not like.