In the latest sign of just how far the administration has embraced same-sex marriage and the expansion of federal benefits to married gay couples, the Department of Labor headquarters building hosted a rooftop wedding between a worker and his partner Wednesday night.

Officials confirmed Thursday the wedding between a regional solicitor and his longtime mate. A reception in a conference room followed. No names were offered.

An official called it a “low-key” ceremony during which no federal funds were used. Labor Secretary Thomas Perez did not attend.

It is believed to be the first-ever same-sex marriage in a Cabinet-level headquarters building.

The wedding marked the latest demonstration by the administration and prominent Washingtonians to endorse and support same sex marriage. Before the wedding at the Frances Perkins Building at the base of Capitol Hill, Perez ordered that legally married same-sex couples be offered the same federal rights as other married couples when it comes to pensions, 401(k)s, health plans and other employee benefits, even if they live in states that don't recognize their union.

And just last month, Justice Ruth Bader Ginsburg officiated a same-sex marriage that included the president of the John F. Kennedy Center for the Performing Arts, Michael M. Kaiser.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at