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In his most infamous statement, Santorum said, “In every society, the definition of marriage has not ever to my knowledge included homosexuality. That’s not to pick on homosexuality. It’s not, you know, man on child, man on dog, or whatever the case may be. It is one thing. And when you destroy that you have a dramatic impact on the quality.”
He never apologized for these comments, which likened gay marriage to pedophilia and bestiality.
1. Ted Cruz

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Like many of his political associates, Ted Cruz, Senator Ted Cruz from Texas–current candidate for the Republican presidential nomination–is a heavy defender of traditional marriage and would go far to deny gays equal rights.

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Cruz warns that permitting gay marriage will directly lead to gay groups accusing Christians and religious organizations of being hate groups purely based on their beliefs. He believes that gay marriage should be a state decision, and that the nation is not responsible for making sexual orientation a protected legal class.