The closed-door deposition in Chappaqua, New York, will mark the first time a former president has been compelled to testify to Congress. It comes a day after Clinton's wife, former Secretary of State Hillary Clinton, sat with lawmakers for her own deposition.
Meanwhile President Donald Trump is traveling to Texas on Friday to talk about his energy and economic policies amid a red-hot Senate Republican primary race. All three GOP candidates are expected to join him, just days before the election.