Exclusive: Eric Trump and Kimberly Guilfoyle's phone records subpoenaed by January 6 committee - CNN

The records also show a log of text messages, but not the substance or content of the messages.

Still, the information can be a critical investigative tool for the committee in piecing together a road map of who was communicating before, during and after January 6.

Both Eric Trump and Guilfoyle played prominent roles in Trump's "Stop the Steal" efforts, including Guilfoyle fundraising off the lie that the election was stolen.

The records may also help the committee flesh out the text messages and phone records it has received from others, like former White House chief of staff Mark Meadows, as well as fundraisers and rally organizers.

CNN reported last month that the committee had already subpoenaed the phone records of more than 100 people as part of its investigation.

In some cases, communication companies have notified the targets of subpoenas from the select committee, which led to several lawsuits to try to prevent panel from obtaining the call detail records.

The newly obtained records include the cell phone number used by Eric Trump, according to sources familiar with the number.

Nor is there any evidence that the committee has subpoenaed communication records related to Trump's other children, Ivanka Trump or Donald Trump Jr., or his son-in-law Jared Kushner.

The committee did release text messages that Donald Trump Jr.

But in an interview with CNN's Don Lemon on Monday night, select committee member Zoe Lofgren, a California Democrat, said, "We're piecing together information from the President's inner circle and others who were in a position to see and hear what the plot was leading up to the riot."

Lofgren declined to say whether the committee had received information from the Trump family, while adding, "nothing is off the table."

According to a source familiar with Eric Trump's thinking about the subpoena of his call records, "He's not losing any sleep over it."

An attorney for Guilfoyle said she had not been notified of any subpoena being issued for her records.

The attorney, Joseph Tacopina, said the subpoena is "of no consequence to her because she has absolutely nothing to hide or be concerned about."

Trump, Guilfoyle roles in 'Stop the Steal'

The committee is interested in Eric Trump due to his involvement with the events of January 6, including efforts related to "Stop the Steal," according to a source familiar with the investigation.

In November, ProPublica first reported that Guilfoyle bragged over text messages about raising millions for the January 6 rally.

Guilfoyle's attorney denied to ProPublica that the texts were related to the January 6 rally or that Guilfoyle was involved with fundraising or approving speakers.

Trump has amassed a war chest of more than $100 million in the months after he left the White House, raising tens of millions of dollars while spreading his lies about the 2020 election being stolen.

The batch of texts the committee released last month included one exchange between Donald Trump Jr.