Obama, Putin to Talk Syria, Chemical Weapons Use

Russia has so far supported the Syrian regime

Even as the White House said it still lacked proof that Syria unleashed chemical weapons against its people, President Barack Obama on Monday raised the issue with Russian President Vladimir Putin in an effort to reach out one of Syria's key allies.

In a telephone call between the two leaders on a range of topics, Obama brought up the Syrian conflict, "underscoring concern over Syrian chemical weapons," administration officials said in a statement.