I'm not from America, but, as an Internet citizen, I still care deeply about the issue. Can I just call American politicians to express my dissatisfaction? Does

I'm not from America, but, as an Internet citizen, I still care deeply about the issue. Can I just call American politicians to express my dissatisfaction? Does it count if I don't have a social security number? I already donated to Fight for the Future, is there something else I can do about this?