By Elise Labott
WASHINGTON (CNN) - It was just after 1 a.m. in Istanbul when John Kerry emerged from the Friends of Syria meeting, flanked by Turkey's foreign minister, Qatar's prime minister and Moaz al-Khatib, leader of Syria's political opposition.
The meeting between the Syrian opposition and foreign ministers from 11 of Syria's main backers ran hours past the original deadline. The gathering was intended to get the opposition and international community on the same page about the pace and scope of aid, but it devolved into an extended argument about what one diplomat called "competing agendas" among the supporters.
Kerry took the reins in negotiating the communique, line by line, not letting anyone leave the room until it was finished. In the statement, the group agreed to channel all military assistance through the military council of the U.S.-backed Syrian National Coalition, a significant stab in curbing the escalating influence of al Qaeda-linked groups that have joined the effort to oust Syrian President Bashar al-Assad. Kerry also pushed the opposition to make strong and verifiable commitments to reject extremism and adhere to pluralism and human rights.
After taking questions from the press, Kerry went back into a meeting with Turkish Foreign Minister Ahmet Davutoglu and al-Khatib, returning to his hotel well past 3 a.m.
Read the full story on cnn.com/politics.