By Jeremy Herb - 08/29/13 09:32 PM EDT
The two Cabinet members, along with other officials, will give lawmakers the latest on U.S. intelligence as the administration works to win congressional support for a military strike against Syria.
The briefing will be unclassified, congressional aides said, due to difficulties arranging secure telephone lines for lawmakers who are away from Washington on recess. It was initially arranged as a classified briefing.
Vice Chairman of the Joint Chiefs Adm. James Winnefeld, Director of National Intelligence James Clapper and national security adviser Susan Rice will also brief lawmakers on the call, according to aides.