Pennsylvania State Representative Daryl Metcalfe is calling for the impeachment of Attorney General Kathleen Kane, a Democrat, for refusing to defend the state's law limiting marriage to heterosexual couples.

Kane's refusal to defend the statute in a lawsuit challenging its constitutionality prompted Governor Tom Corbett, a Republican, to step in.

“I think breaking the law is worthy of impeachment,” the Republican lawmaker told The Patriot-News. “Her duty is to defend the law.”

Citing Kane's announcement, Montgomery County Register of Wills D. Bruce Hanes began issuing marriage licenses to gay and lesbian couples.

“By her example, this Montgomery County official felt emboldened to violate the law also,” said Metcalfe, who also recommended impeachment for Hanes.

“It's not legal,” he said. “Our laws are very clear about what marriage is. Marriage is between a man and a woman. Anything that that courthouse issues to anyone other than a man and a woman would not be valid in Pennsylvania. The individual doing so is committing an act of lawlessness. It's outrageous to see a locally elected official believe he has the ability to set state policy like this from a local county office. It it wasn't so wrong it would be laughable.”

At least two Pennsylvania mayors have offered to marry gay couples who already have a marriage license. On Monday, Braddock Mayor John Fetterman did marry such a couple.

(Related: Penn. Rep. Daryl Metcalfe blocks gay Rep. Brian Sims' DOMA remarks.)