He's an FOB (friend of Bush), so it's not in protest.

http://www.swissinfo.org/sen/swissinfo.htm...105&sid=1670609

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The United States ambassador to Switzerland, Mercer Reynolds, has announced he will be leaving Bern at the end of March after just 18 months in the job.

His unexpected departure has prompted media speculation that he is returning to the US to help in President Bush’s re-election campaign.
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Reynolds took over from his predecessor, Richard Fredericks, on September 11, 2001 – the same day as the attacks on New York’s Twin Towers and the Pentagon in Washington.

Bern was his first diplomatic posting – he came from a purely business background.
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Oh, it's one of the guys who bailed out Bush and helped make him rich.

http://www.opensecrets.org/bush/ambassador...rs/reynolds.asp

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President Bush nominated a wealthy contributor and former business partner as ambassador to Switzerland, one of the most desirable posts on the world map.

Reynolds and another famous investor, William DeWitt, Jr., own the successful investing firm Reynolds, DeWitt & Co. The two have enjoyed a long business relationship with Bush: They bailed out Bush's struggling oil company in 1984, and involved him in their 1989 purchase of the Texas Rangers baseball team. Bush ran the franchise, with the endorsement of Reynolds and DeWitt, and made millions in the process.
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