WASHINGTON — The chairman of a House committee investigating the deadly 2012 attacks in Benghazi, Libya, said Tuesday he will call former Secretary of State Hillary Rodham Clinton to appear before his committee at least twice.

Rep. Trey Gowdy, R-S.C., said one appearance is needed to “clear up” Clinton’s role in using personal email to conduct official business as the nation’s top diplomat. The committee wants to establish that it has a complete record with respect to Clinton’s four-year tenure, Gowdy said.

The committee also plans to call Clinton to appear at a separate public hearing to answer questions specifically regarding Libya and the September 2012 attacks in Benghazi that killed U.S. Ambassador Christopher Smith and three other Americans, Gowdy said.

Gowdy said he was “left with more questions than answers” after Clinton’s news conference.