Morning Memo: Mary-Kate Might Dish; the Jolie-Pitt Twins Show Their Faces; Paris Hilton Shuns McCain

Mary-Kate Olsen may speak with federal investigators regarding the January death of Heath Ledger, whom she was allegedly dating at the time, though she’s reportedly requesting immunity from prosecution if she does. [NY Post]

The first photos of Angelina Jolie and Brad Pitt‘s twins Knox and Vivienne have been published by People magazine. [People]

The photos sold for over $14 million; the money will go to charity. [AP]

Paris Hilton has no thoughts on the most recent John McCain campaign ad. [P6]

In the Hamptons, the battle rages on between Christie Brinkley and ex-husband Peter Cook. Word is that Ms. Brinkley was reduced to tears when, during his visitation weekend with their children, Cook barred her from taking the kids to see her a performance by her other ex, Billy Joel. [NY Daily News]

Calvin Klein has announced that he will host a party celebrating the 40th anniversary of his label in a specially designed, temporary structure on the High Line at 30th St. and 10th Ave. until Sept. 7. The party will feature pre-opening tours of the elevated park, which is adjacent to the site. [WWD]