Barack Obama, the Best Wedding Guest Ever? Ex-President Officiates Washington Wedding

Former president Barack Obama speaks to a gathering of more than 50 mayors and other guests during the North American Climate Summit on December 5, 2017 in Chicago, Illinois. On Sunday, January 20, the former president officiated a wedding in Washington D.C. Photo by Scott Olson/Getty Images

Former President Barack Obama surprised wedding guests when he officiated a wedding in Washington, D.C., for two of his former staffers.

Dana Remus and Brett Holmgren swore close family members to secrecy about Obama's participation in the wedding on Sunday, and the mother of the groom said many of the guests were very surprised.

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WHEN OBAMA IS THE OFFICIANT!!! I had the HONOR of working with an AMAZING family the last few months planning the details of their wedding officiated by close friend and boss President Barack Obama. GAAAHH!!!!! My favorite moments with POTUS 1) rehearsing before the ceremony, 2) pinning the boutonnierre on POTUS  3) the signing of the marriage certificate (insert really funny moment on 4th Street hahaha!!!) Below is the article from today's post on POLITICO.COM "WEEKEND WEDDING – OBAMA ALUMNI: Brett Holmgren, former special assistant to President Obama and senior director for intelligence programs, on Sunday afternoon married Dana Remus, former White House senior counsel. Holmgren is now VP for cybersecurity oversight at Capital One and Remus is general counsel for the Obama Foundation and Obama’s personal office. Pool report: “President Obama officiated and Rev. Oran Warmer of St. Paul’s Episcopal Church in Alexandria was the celebrant. Friends and family danced the evening away at District Winery in Navy Yards.” SPOTTED: Susan Rice, Ian Cameron, James Clapper, Anita Dunn and Bob Bauer, Lisa Monaco, Denis McDonough, Karin Hillstrom, Anita Decker Breckenridge, Russ Breckenridge, Eric Schultz, Emily Blakemore, Sean Crotty, Stuart Murphy, Nick McQuaid, Joe Paulsen, Samantha Tubman, Michael Bosworth, David Guggenheim, Jeff Zients, Mary Menell and Yohannes Abraham." THANK YOU to this freaking amazing team of partners! 💖💖💖💖 VENUE: @districtwinery GLAM SQUAD: @jkwbeauty PHOTOS: @danielletreal FLOWERS: @lovebloomsdc BAND: @dcfusionband STATIONERY: @bellajenna CAKE: @booshey_bites AV @brucepikeproductions PLANNER @pinkboxe with my be-muse @12in12design ... and makeup for yours truly @shaunehayesmakeup 💛2018 is off to an amazing start!!!!💛

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"He complimented them both on their work, on the type of people they were, threw in a tiny bit of humor," Mary Holmgren told the Washingtonian magazine. "He spoke about how their work has been a service to the people and how the two of them complement each other. Very, very sincere remarks, it came from his heart."

The newlyweds know Obama well. Remus is general counsel for the Obama Foundation and Obama's personal office, and Holmgren worked in the Obama White House as the president's special assistant and as senior director for intelligence programs on the National Security Council staff.

"We had decided to invite him because he was such an important part of our lives,..." Holmgren told the Washingtonian. "We also asked him if he could officiate, and he was intrigued with the idea."The 44th president secured a temporary officiant's license from the District of Columbia and graced the marriage certificate with his signature.

Former first lady Michelle Obama could not make the wedding, but Obama stayed long enough to take some photos with the family. He left before the reception and dance so as not to distract attention from the newlyweds, the groom's mother said.

Obama served as a groomsman for two other Washington staffers last year, and is still being invited to strangers' weddings.