Henry and Jenna Bush Hager
Kimberlee Hewitt/The White House/AP
06/21/2008 at 09:40 PM EDT
A White House wedding reception for first daughter Jenna and new husband Henry Hager on Saturday night drew hundreds of friends and family, including President Bush, who took to the dance floor.
The United States Marine Band played a selection of standards and other "oldies-but-goodies," one of the guests tells PEOPLE, for the Republican-heavy crowd of 600 including secretaries of state past and present, Colin Powell and Condoleeza Rice.
President Bush danced, as did First Lady Laura Bush and their two daughters, Barbara and her newlywed
sister Jenna, who is just back from her Hawaiian honeymoon
, the guest says.
"The President looked pretty cool,” says the guests. “He was a good dancer. He was having a great time."
After the reception, the groom's parents, John and Maggie Hager, invited friends to join them at the Old Ebbitt Grill a few steps from the White House and a favorite hangout for politicos.