Hillary Rodham Clinton “has a lot to explain” should she run for president, Minnesota Rep. Michele Bachmann told the nation’s largest gathering of conservative activists on Saturday, the final day of its annual meeting.

The Republican firebrand, one of the few women featured at the three-day Conservative Political Action Conference, raised pointed questions about the former secretary of state’s work in Russia and Libya. And she challenged the Republican Party’s struggle with women voters, who have supported Democrats in every presidential election since 1988.