POCANTICO HILLS, N.Y. (AP) — Setting aside for a few hours the pressures of trying to calm the world's trouble spots, President Barack Obama assumed the role of spectator for something more joyous: the wedding of the first family's longtime chef and friend. The president and his chef have a close relationship, which Obama highlighted earlier this month when he spent several hours at dinner at Kass' apartment amid the turmoil in Iraq, Ukraine and Ferguson, Missouri. [...] the guest list was expected to include staff from both the White House and the liberal-leaning cable news outlet, with people from both sides breaking bread at the same dinner table. Besides cooking for the family most weeknights, Kass also serves as senior nutrition policy adviser and executive director of the first lady's anti-childhood obesity initiative. In June 2012, Obama, his wife, daughters and mother-in-law attended the Chicago wedding of the daughter of White House senior adviser Valerie Jarrett.