Even if a child or a loved one came out as gay, the Republican Speaker of the House said he "can't imagine that position would ever change."
The Little Traverse Bay Bands of Odawa Indians tribe in Michigan performs their first same-sex marriage ceremony.
"Here's hoping they make the right decision and I'm praying that moves like this will help," the singer says.
The Ohio senator, who was vetted by the Romney campaign as a potential vice president, said having a gay son changed his mind.
Seventy marchers voice anger at Kayla Moore's death.
An alternative parade is planned for Saturday.