With Sesame Street's Elmo and Rosita donning chef hats, First Lady Michelle Obama and White House chef Sam Kass help create a vegetable wrap with school children in the annual fall harvest of the White House Kitchen Garden on the South Lawn of the White House in Washington, DC on October 30, 2013. Sesame Street's Elmo and Rosita joined the festivities in a marketing campaign to help children eat healthier foods. UPI/Pat Benic | License Photo

President Barack Obama talks to golf partner Sam Kass on the 18th hole after playing a round of golf at the Mid Pacific Country Club in Lanikai, Hawaii on January 1, 2014. The First Family continues their vacation in Hawaii. UPI/Cory Lum/Pool | License Photo

First Lady Michelle Obama, joined by local D.C. school students and White House Chef Sam Kass, harvest sweet potatoes in the White House Garden in Washington on October 20, 2010. UPI/Kevin Dietsch | License Photo

First Lady Michelle Obama works with students from Bancroft Elementary and Kimball Elementary Schools, both in the District of Columbia, at the Fall Harvest of the White House Kitchen Garden in Washington on October 29, 2009. At right is Assistant White House Chef Sam Kass. UPI/Alexis C. Glenn | License Photo

Assistant White House Chef Sam Kass speaks to the press about White House Kitchen Garden before First Lady Michelle Obama welcomes students from Bancroft Elementary and Kimball Elementary Schools, both in the District of Columbia, to the White House for the Fall Harvest in Washington on October 29, 2009. UPI/Alexis C. Glenn | License Photo

President Barack Obama. First Lady Michele Obama and their daughters Sasha and Melia walk toward Marine One on the South Lawn of the White House in Washington, District of Columbia, U.S., on Saturday, Aug. 30, 2014. The First Family is traveling to Westchester County, New York to attend the wedding of his senior policy adviser for nutrition policy and Let’s Move Executive Director, Sam Kass. UPI/Pete Marovich/Pool | License Photo

President Barack Obama. First Lady Michele Obama and their daughters Sasha and Melia walk toward Marine One on the South Lawn of the White House in Washington, District of Columbia, U.S., on Saturday, Aug. 30, 2014. The First Family is traveling to Westchester County, New York to attend the wedding of his senior policy adviser for nutrition policy and Let’s Move Executive Director, Sam Kass. UPI/Pete Marovich/Pool | License Photo

President Barack Obama waves to the media as he and the First Family walk toward Marine One on the South Lawn of the White House in Washington, District of Columbia, U.S., on Saturday, Aug. 30, 2014. The President and First Lady are traveling to Westchester County, New York to attend the wedding of his senior policy advisor for nutrition policy and Let’s Move Executive Director, Sam Kass. | License Photo

First daughters Sasha and Melia look back at President Barack Obama and First Lady Michele Obama as they walk toward Marine One on the South Lawn of the White House in Washington, District of Columbia, U.S., on Saturday, Aug. 30, 2014. The First Family is traveling to Westchester County, New York to attend the wedding of his senior policy adviser for nutrition policy and LetÕs Move Executive Director, Sam Kass. UPI/Pete Marovich/Pool | License Photo

President Barack Obama and First Lady Michele Obama walk toward Marine One on the South Lawn of the White House in Washington, District of Columbia, U.S., on Saturday, Aug. 30, 2014. The First Family is traveling to Westchester County, New York to attend the wedding of his senior policy adviser for nutrition policy and Let’s Move Executive Director, Sam Kass. UPI/Pete Marovich/Pool | License Photo

President Barack Obama. First Lady Michele Obama and their daughters Sasha and Melia walk toward Marine One on the South Lawn of the White House in Washington, District of Columbia, U.S., on Saturday, Aug. 30, 2014. The First Family is traveling to Westchester County, New York to attend the wedding of his senior policy adviser for nutrition policy and Let’s Move Executive Director, Sam Kass. UPI/Pete Marovich/Pool | License Photo

POCANTICO HILLS, N.Y., Aug. 30 (UPI) -- U.S. President Barack Obama, first lady Michelle Obama and the kids got all dressed up Saturday to attend the wedding of their longtime chef Sam Kass to MSNBC host Alex Wagner.

Kass and Wagner were married at a farm-to-table restaurant called Blue Hill at Stone Barns in Pocantico Hills, N.Y.


The Obamas -- including Malia and Sasha -- left the White House all clad in black via Marine One earlier in the day.

Kass started as the Obamas' personal chef when the family lived in Chicago. He is the president's senior policy adviser for nutrition policy and serves as director of the first lady's Let's Move program.

Wagner hosts weekday program Now with Alex Wagner.