Former Arizona Congressman J.D. Hayworth, who is challenging Senator John McCain in the Republican primary, said Massachusetts' gay marriage law was “dangerous” and would likely allow a man to marry a horse, the Huffington Post first reported.

Hayworth made his comments during an interview on Orlando-based radio station WORL Sunday.

The fifty-one-year-old politician called the Massachusetts Supreme Court ruling that legalized gay marriage in the state “dangerous” because it defines marriage as simply “the establishment of intimacy.”

“Now how dangerous is that?” Hayworth said.

“I guess that would mean if you really had affection for your horse, I guess you could marry your horse.”

The former television sportscaster then affirmed his support for a federal constitutional amendment defining marriage as a heterosexual union, a move that would strike down existing gay marriage laws and block the Supreme Court from legalizing the institution.

“It's just the wrong way to go, and the only way to protect the institution of marriage is with that federal marriage amendment that I support,” he said.

While McCain has voted against the constitutional amendment, he does not support gay marriage. The seventy-three-year-old senator says he believes states should define marriage, not the federal government.

Gay activists have argued that such a marriage would not be allowed because animals cannot enter legal contracts or give legal consent.