Former Rep. J.D. Hayworth (R-Ariz.) said Sunday that the expansion of state laws allowing gay marriage could lead to people marrying horses.

Hayworth, during an interview with an Orlando, Fla., radio station explained: "You see, the Massachusetts Supreme Court, when it started this move toward same-sex marriage, actually defined marriage - now get this - it defined marriage as simply, 'the establishment of intimacy.'"

Hayworth's spokesman quits

"Now how dangerous is that?" asked Hayworth, who is challenging Sen. John McCain from the right in Arizona's GOP Senate primary.

"I mean, I don't mean to be absurd about it, but I guess I can make the point of absurdity with an absurd point," he continued. "I guess that would mean if you really had affection for your horse, I guess you could marry your horse."

The former Republican congressman then insisted that the "only way" to prevent men from marrying horses is to create a federal marriage amendment. Hayworth noted that he supports such an amendment.

In fact, the 2003 Massachusetts Supreme Court ruling striking down a ban on gay marriage defined marriage as "the voluntary union of two persons as spouses, to the exclusion of all others."

The Arizona Republic is a member of the Politico Network.