President Obama delivers the commencement address at Barnard College, where he'll share the stage with Evan Wolfson, the founder of the pro-gay group Freedom to Marry.
Later on Monday, he'll appear as a guest on The View. His remarks come after Gov. Mitt Romney briefly reaffirmed his opposition to gay marriage on Saturday while addressing Liberty University, considered a conservative and Christian university.
ALSO ON HUFFPOST:
Start your workday the right way with the news that matters most. Learn more