President Barack Obama on Tuesday reiterated that he supports an effort to make Illinois the 13th state to legalize gay marriage.

“Were the president still in the Illinois State Legislature, he would support this measure that would treat all Illinois couples equally,” spokesman Shin Inouye said in a statement given to POLITICO.

“While the president does not weigh in on every measure being considered by state legislatures, he believes in treating everyone fairly and equally, with dignity and respect,” he added. “As he has said, his personal view is that it's wrong to prevent couples who are in loving, committed relationships, and want to marry, from doing so.”

Obama first came out in support of the measure in December.

Former President Bill Clinton has also endorsed the effort.

(Related: Gay marriage supporters in Illinois say they have the votes.)