Beau Biden’s widow, Hallie, who was in a romantic relationship with Hunter Biden after Beau’s death, is now a “person of interest,” House Republicans say, in their investigation of Chinese-linked payments to Hunter and other Biden family members.

Congressman James Comer, chairman of the House Oversight Committee, says that over the course of three months in 2017, the Biden family collectively received more than $1 million in payments from a business associate of Hunter’s who worked with him in the Chinese energy market, Rob Walker.