Advocates of military strikes against Syria say that country’s use of chemical weapons is a red line.

Has the line shifted now that Congress is debating whether to authorize military action?

Let us know how members should navigate this question in Capitol Quip. Send us a caption for this week’s contest by leaving it in the comments section of our Heard on the Hill blog. Editors will pick five finalists on Sept. 11, and everyone can vote for the winner through Sept. 12.

Check out our past winners on Pinterest.