Rep. James Comer said a former deputy chief of staff invoked her Fifth Amendment rights when asked if anyone “instructed her to lie."

As the GOP probe into Biden’s mental acuity and use of an autopen expands, a growing number of his top aides are being swept up in a thorny legal predicament.

Annie Tomasini became the third Biden administration official to plead the Fifth Amendment in a House panel's investigation into the former president's mental fitness.