Left: Former President Joe Biden. A new book describes Biden's cabinet meetings as "scripted" and "uncomfortable." Right: House Oversight and Accountability Committee Chair James Comer, R-Ky., who has been investigating the alleged cover-up of Biden's mental decline. (Paul Morigi/Getty Images for Care Can't Wait Action and AP Photo/Mariam Zuhaib)
A source familiar with the discussions told Fox News Digital that she invoked the Fifth Amendment multiple times, which likely is what led to the hasty meeting.
Tomasini is the third ex-Biden administration official to come before committee investigators under subpoena, and the fifth to appear overall.
She was meant to appear Friday for a voluntary transcribed interview, but a committee aide previously told Fox News Digital that Tomasini's lawyers had asked House Oversight Committee Chairman James Comer, R-Ky., to issue a subpoena specifically.
The House Oversight Committee questioned President Joe Biden’s physician Kevin O'Connor during a recent hearing as part of a probe into Biden's mental decline. (Manuel Balce Ceneta/AP)
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In an interview with The New York Times on Thursday, Biden affirmed he "made every decision" on his own.
But Republicans have repeatedly accused those who have pleaded the Fifth Amendment so far of intentionally hiding critical information about the former president, even as their attorneys argue it is not an admission of guilt.
Elizabeth Elkind is a politics reporter for Fox News Digital leading coverage of the House of Representatives. Previous digital bylines seen at Daily Mail and CBS News.
Follow on Twitter at @liz_elkind and send tips to elizabeth.elkind@fox.com
https://www.foxnews.com/politics/house-republicans-face-mounting-resistance-third-ex-biden-wh-aide-pleads-fifth-amendment