CBS News poll — War in Ukraine: What should the U.S. do now?

There's strong support for sending Ukraine more weapons to help in their fight, and increased sanctions against Russia find favor, too, as Americans watch continued horrors of the war unfold. 

And while few back direct U.S. military action in Ukraine right now, Americans do have a "red line" that could change that: Russian use of chemical or nuclear weapons or an attack into NATO territory would spur a big majority backing for U.S. military action in response. 

Support for sanctions on Russia not only remains strong but of those backing them, big majorities favor increasing them now.