Kansas Congressman Tim Huelskamp, a Republican, last week warned that allowing gay couples to marry harms children, the economy and society.

Appearing on Washington Watch, a radio program hosted by Family Research Council (FRC) President Tony Perkins, a strong opponent of gay rights, Huelskamp called on Congress to approve his Marriage Protection Amendment, which would define marriage as a heterosexual union in the United States Constitution.

Huelskamp told Perkins that the federal courts created “chaos” when they struck down state marriage bans and now “folks are confused about what a marriage is.”

“[If] we don't protect the traditional basis for marriage, it harms everyone, particularly our young children,” he said, then added that it also “discourages family formation,” undermines the African-American community and harms America's “economic well-being.”

“So now is the time when the courts are trying to rule and might decide to redefine or undefine marriage, it is critical not just for individuals and for families but for society as a whole,” Huelskamp said. “At the end of the day, it's children that are hurt.”

Huelskamp proposed his amendment in 2013, just hours after the Supreme Court struck down a key provision of the Defense of Marriage Act (DOMA), which led to the federal government's recognition of the marriages of gay couples.

(Related: Tim Huelskamp's proposed federal gay marriage ban has 28 co-sponsors.)