Is Newsweek's Sarah Palin Cover Sexist?

Former Alaskan Governor Sarah Palin blasted Newsweek magazine on her Facebook page for their "out-of-context" cover as "sexist".

Although the cover looks like cover from National "ampoon cover it's actually a pictorial Palin did for "Runner's World" magazine in August 2009, right after John Mccain made her his VP candidate.

Do you think the Newsweek cover is sexist and/or belittles her?