The chairman of a House committee investigating the 2012 attacks on Americans in Benghazi, Libya, has called former Secretary of State Hillary Rodham Clinton to testify next month, setting up a high-profile showdown over Clinton’s use of a private email account and server while she was secretary of state.

Republican Rep. Trey Gowdy of South Carolina says he wants Clinton to testify the week of May 18 and again before June 18. The first hearing would focus on Clinton’s use of private emails; the second on the September 2012 attacks that killed four Americans, including the U.S. ambassador to Libya.

Gowdy’s action comes a day after the GOP-led panel signaled its final report could slip to next year, just months before the presidential election. Clinton is the leading Democratic candidate.

(AP)