I'm not american, but here goes:
Kucinich 70
Iran Sanctions
Obama 52
Patriot Act, Border Fence, Same-Sex Marriage
Clinton 52
Death Penalty, Patriot Act, Border Fence, Same-Sex Marriage
Gravel 52
Iran Sanctions
Edwards 49
Death Penalty, Patriot Act, Same-Sex Marriage
Richardson 48
Death Penalty, Assault Weapons Ban, Patriot Act, Same-Sex Marriage
Dodd 47
Death Penalty, Patriot Act, Border Fence
Biden 37
Death Penalty, Patriot Act, Border Fence, Same-Sex Marriage
McCain -11
Paul -17
Giuliani -19
Huckabee -33
Cox -34
Thompson -40
Brownback -40
Romney -54
Hunter -55
Tancredo -56