Republicans are investigating whether former President Biden's mental decline was concealed while in office, with calls to subpoena administration members after aide pleads the Fifth.

A top Canadian official says the country is considering cutting back on sending lumber to the U.S. to win over President Trump during trade negotiations.

Anthony Bernal, who was an aide to former President Biden and first lady Jill Biden, refused to answer questions Wednesday from House lawmakers investigating the alleged cover-up of Mr. Biden's mental decline, invoking his Fifth Amendment right to avoid self-incrimination.