Is it appropriate to protest by kneeling during the national anthem?

Poll Questions

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Q: Do you think it is ever appropriate to protest by kneeling during the national anthem, or is that never appropriate?

Q: Do you think it is ever appropriate to protest by burning the American flag, or is that never appropriate?

Q: Do you think it is ever appropriate to protest by blocking cars from driving on a road or highway, or is that never appropriate?

Q: Generally speaking, do you usually think of yourself as a...