President Barack Obama has won backing from key US political figures on his plans of hitting Syria .
Obama is seeking authorization for limited U.S. strikes on Syria to punish President Bashar al-Assad for his suspected use of chemical weapons against civilians.
Leaders of the U.S. Senate Foreign Relations Committee said they reached an agreement on a draft authorization for the use of military force in Syria, paving the way for a vote by the committee on Wednesday. However, the draft is much narrower than the request made by Obama and includes a provision barring the use of U.S. troops on the ground.
John Boehner, the Republican speaker of the U.S. House of Representatives, and House Majority Leader Eric Cantor both pledged their support for military action after the meeting.
Votes are expected to be held in the Senate and House next week, with the Republican-led House presenting the tougher challenge for Obama.
In remarks that appeared to question the legality of U.S. plans to strike Syria without U.N. backing, Secretary-General Ban Ki-moon said the use of force is only legal when it is in self-defence or with Security Council authorization.