Illinois Sen. William Delgado, center, D-Chicago, celebrates after Senate Bill 10, a measure to legalize gay marriage, passed in the Senate with a vote of 34-21 at the Illinois State Capitol, Thursday, Feb. 14, 2013, in Springfield, Ill. (AP Photo/The State Journal-Register, Justin L. Fowler)
The Illinois Senate debates gay marriage Thursday.
SPRINGFIELD — The divisive battle to make Illinois the 10th state to legalize gay marriage turned to the House after an emotional Valentine’s Day debate in the Senate ended Thursday with an up vote that one supporter described as “one for the history books.” The …