Photo
Hillary Rodham Clinton during the National Association of Latino Elected and Appointed Officials  conference in Las Vegas last week. CreditIsaac Brekken for The New York Times 
WASHINGTON — Despite claims by Hillary Rodham Clinton that she gave the State Department all of her work-related emails from the personal account that she used exclusively when she was in office, the department said on Thursday that it had received several related to Libya that she had not handed over.
The disclosure is the first significant evidence to raise questions about whether Mrs. Clinton deleted emails from the account that she should have given to the State Department because they were government records.
The State Department said that in comparing emails from Sidney Blumenthal, a confidant of Mrs. Clinton’s, to the ones she gave to the department, officials could not find nine and portions of six others. At the time they were exchanging the emails, Mr. Blumenthal did not work at the State Department but was routinely providing her with intelligence memos about Libya, some with dubious information, which Mrs. Clinton circulated to her deputies.
The disclosure is likely to increase pressure on the House speaker, John A. Boehner of Ohio, from fellow Republicans to subpoena the server that housed the personal email account. Mrs. Clinton has said that last year she gave the State Department about 30,000 emails that were related to her work as secretary of state. She said that she deleted roughly the same number of emails from the account, saying those messages “were private, personal” ones about her daughter’s wedding, her mother’s funeral, family vacations and yoga.
Nick Merrill, a spokesman for Mrs. Clinton, said that she had given the State Department “over 55,000 pages of materials,” including “all emails in her possession from Mr. Blumenthal.”
In recent weeks, Republicans have raised concerns about whether Mrs. Clinton gave the State Department all of her work-related emails. On June 12, Mr. Blumenthal gave the House committee investigating the 2012 attacks in Benghazi, Libya, about 60 emails related to Libya that he had exchanged with Mrs. Clinton.
Mr. Blumenthal handed over the emails in response to a subpoena from the committee. Many of the emails that Mr. Blumenthal divulged had not been given to the committee by the State Department, which has taken the lead in responding to requests for documents related to the attacks that killed four Americans, including Ambassador J. Christopher Stevens.
Concerned that the State Department might have withheld the emails from the committee, its chairman, Representative Trey Gowdy, Republican of South Carolina, asked why the panel had not been given the emails and whether Mrs. Clinton had handed them over to the department.
The State Department then went through the emails that Mrs. Clinton had turned over, discovering that there were some that Mr. Blumenthal had given to the committee that Mrs. Clinton had not handed over.
Last week, the committee sent the State Department the emails that Mr. Blumenthal had handed over and asked whether it had them. The committee asked for a response by Monday, but the department said it would need more time to review its records. On Thursday, the State Department sent its response to the panel.