Barack Obama: “The argument that it's necessary to support and prop up Assad to avoid chaos and avoid violence is being refuted every…”

I think when we act on that basis, it doesn't always work out, but over time things do get better.

Because if this becomes the new normal, there’s no reason to believe it will stop with her — or that future presidents, in either party, won’t do the same.

I’m going to insist that we can do better than we’re doing right now.

And I will fight for that, even if I don’t always think it’s going to win.