In December, the Wall Street Journal reported that federal prosecutors were investigating whether the inaugural committee misspent some of the record $107 million it had raised from donors.
"It is our intention to cooperate with the inquiry", she said.
On Monday, federal prosecutors from New York's Southern District reportedly asked the committee to hand over documents about its donors and finances, so that they may determine if any foreign agents donated illegally to the group, and, more crucially, if inauguration staff knew such contributions were illegal.
"We have just received a subpoena for documents".
The subpoena, first reported by ABC, represents an escalation of the investigation, headed by the public corruption unit of the Manhattan US attorney's office.
A spokesperson for the inaugural committee indicated to the Times that it is still reviewing the subpoena and is intending to cooperate with prosecutors.More news: Titanfall battle royale game 'Apex Legends' takes aim on 'Fortnite'
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The contents of the documents are unclear.
Reports of the subpoena have also been reported by CNN and ABC News as well.
The investigation is the latest in a series of criminal inquiries into Mr Trump's campaign and presidency.
Mueller is separately examining the campaign's ties to Russian Federation while the same federal prosecutors who subpoenaed Trump's inaugural records are probing his company, the Trump Organisation.
CNN's Shimon Prokupecz reported on Twitter that on the cover of the subpoena, prosecutors alleged that the committee partook in "conspiracy against the U.S., false statements, mail fraud, wire fraud, money laundering, inaugural committee disclosure violations, and laws prohibiting contributions by foreign nations and contributions in the name of another person". Foreign contributions to inaugural funds and PACs are prohibited under federal law.
Tom Barrack, the inaugural committee's chairman, also declined to comment.