Secretary of Education Arne Duncan on Monday publicly endorsed gay marriage.

Appearing on MSNBC's Morning Joe, Duncan was asked by Mark Halperin, “Do you believe that same sex men and women should be able to get legally married in the United States?”

After a brief pause, Duncan answered: “Yes. I do.” (The video is embedded in the right panel of this page. Visit our video library for more videos.)

Duncan is the Obama administration's second cabinet official to support marriage equality.

In an interview last year with gay weekly Metro Weekly, Housing and Urban Development Secretary Shaun Donovan said that passage of a gay marriage law in New York made him proud to be a New Yorker.

Duncan's remarks come a day after Vice President Joe Biden said he was “comfortable” with gay couples marrying.

Evan Wolfson, founder and president of Freedom to Marry, responded in a statement.

“Secretary of Education Arne Duncan's announcement this morning adds him to the drumbeat of Obama Administration members coming out in support of the freedom to marry for same-sex couples. Like Vice President Biden, former Presidents Clinton and Carter, former Vice Presidents Gore and Cheney, Laura Bush, and the majority of Americans. Secretary Duncan knows that loving and committed gay couples seek the freedom to marry for the same mix of reasons as other couples: to make a vow to one another, to share life with the person they love, and to protect their families. Standing up for the freedom to marry is not just the right thing to do, it's the right thing politically, and it's time for the President to stand on the right side of history,” Wolfson said.