A group has called on Chicago Cardinal Francis George to excommunicate Governor Pat Quinn for his support of gay marriage.

The Rockford Pro-Life Initiative put out the call in a statement.

“If Cardinal George and all the Illinois Bishops declare that any politician who claims to be Catholic, including Gov. Quinn, [who] votes for a homosexual marriage bill would be automatically and publicly excommunicated, this would stand a very good chance of protecting marriage.”

Bills aimed at legalizing marriage equality are expected to be introduced on Wednesday.

(Related: Gay marriage bills introduced in Illinois.)

George, also the head of the Catholic Conference of Illinois, is an outspoken opponent of the proposed legislation. However, the group chided him for failing to hold the governor accountable.

“Governor Quinn is also under the authority of Cardinal George, who has flatly refused to use his authority to discipline Gov. Quinn.”

“Is it any wonder that our 'Catholic' governor continues his destruction of human life and families when the leader of the Church in Illinois refuses to use the authority of his office to excommunicate a governor who uses his Catholic faith and political power to destroy countless human lives and souls?”

(Related: Cardinal Francis George: Gay marriage is unnatural.)