Illinois Senator Bill Brady has captured the Republican nomination for Illinois governor, gay website reported.

Rival Republican Kirk Dillard conceded defeat Friday, a month after the Illinois primary, and endorsed Brady for governor. Brady eked out a victory with a narrow 193 votes, a final count from the State Board of Elections found.

Brady has publicly acknowledged his opposition to gay marriage, saying he supports amending the state's constitution to define marriage as a heterosexual union. Such an amendment would effectively ban gay marriage and block the state's top court from legalizing the institution.

He is also the author of a bill that would exempt religious groups from a gay protections law. Brady's bill would carve out an exception to the Illinois Human Rights Act, which prohibits discrimination on the basis of sexual orientation and gender identity, for religious groups, effectively allowing any church-affiliated group to discriminate against gay people. The bill's exceptions would only apply to workplace protections. Late last month, the bill's sponsorship was transferred from Brady, who authored and introduced the bill, to Senator John O. Jones, a Springfield Republican, without explanation.

Illinois Governor Pat Quinn, the Democratic candidate, called Brady's positions outside of the mainstream.

“The Republican nominee is from the extreme right wing of the party and far from the mainstream of Illinois voters,” Quinn said.

Rick Garcia, political director of Equality Illinois, the state's largest gay rights advocate, voiced his opposition to Brady.

“Brady has supported or co-sponsored every piece of anti-gay legislation there has been in Springfield – from a constitutional ban on same-sex marriage to gutting the Illinois Human Rights Act,” Garcia told in February.

Quinn supports recognizing gay couples with civil unions.