Eva Longoria stole the show Thursday night in a plunging black silk dress, as she was also named a co-chair of Obama's reelection campaign.

Joined by friends like Victoria Beckham and Kate Beckinsale, the "Desperate Housewives" star dazzled in a Cushnie et Ochs design at the Vanity Fair and Chrysler celebration of The Eva Longoria Foundation held at her restaurant Beso in Hollywood.

Beckham was dressed in a blue and black Victoria Beckham dress, which she tweeted as her "favourite dress from AW12!"

"My beautiful girl @victoriabeckham supporting me @VanityFair," Longoria tweeted with a picture.

Longoria was named among 35 national co-chairs of President Barack Obama's reelection campaign, the White House announced Thursday.
She has been a vocal supporter of Obama.
"I'm a big Obama supporter no matter what he's been through. He's been beaten up the past couple of years,' Eva said last year on Jimmy Kimmel Live.