Thousands of people are expected for today’s event in Chicago, where Governor Pat Quinn will sign same-sex marriage into law.
At around the same time, both supporters and opponents of the new law will have their say in Springfield.
Catholic Bishop Thomas John Paprocki will offer “prayers of supplication and exorcism” in services at the Cathedral downtown starting at 4pm.
Just before that, a group that supports the new law says it will hold its own prayer service outside the church.
And the Abraham Lincoln Unitarian Universalist Congregation in Springfield will also hold a prayer service in support of marriage equality, beginning at 3:30 this afternoon.