WASHINGTON — The House Foreign Affairs Committee has subpoenaed Secretary of State Mike Pompeo for documents he turned over to a Senate panel that is investigating Hunter Biden, a son of Democratic presidential candidate Joe Biden. Committee Chair Eliot Engel said Friday he had issued the subpoena as part of an investigation into Pompeo’s “apparent use of Department of State resources to advance a political smear of former Vice President Joe Biden.” The subpoena demands all the records that the department has turned over to Republican-led Senate committees that are investigating Hunter Biden’s work for a gas company in Ukraine while his father was vice president.