Former President Bill Clinton is testifying Friday before members of Congress investigating convicted sex offender Jeffrey Epstein. The closed-door deposition in Chappaqua, New York, marks the first time a former president has been compelled to testify to Congress, setting a precedent Democrats say will apply to President Donald Trump. It comes a day after former Secretary of State Hillary Clinton sat for her own deposition. Meanwhile Trump is traveling to Texas to talk about energy and the economy. All three candidates in the red-hot Senate Republican primary are expected to join him just days before the election.