Q: The United States says it has determined that the Syrian government has used chemical weapons in the civil war there. Given this, do you support or oppose the United States launching missile strikes against the Syrian government?
59% oppose, 36% support launching missile strikes.

Even more oppose arming the rebels: 70% oppose, 27% support.

The Washington Post – ABC News poll: Click Here
The Post-ABC poll was conducted by telephone Aug. 28-Sept. 1, 2013, among a random national sample of 1,012 adults, including users of both conventional and cellular phones. The margin of sampling error for overall results is plus or minus 3.5 percentage points.

Tracking Congress:
Where Things Stand, as of September 4th,
Aaron Blake, published his whip count on the Washington Post Blog:

22 Senators are for, 50 are undecided. 22 are against or leaning that way.
19 Representatives are for, 103 are undecided, and the rest are against or leaning that way.
Click Here for charts