http://www.cnn.com/2009/POLITICS/07/07/palin.resignation/index.html

"I am not a quitter. I am a fighter," Palin told CNN on Monday while on a family fishing trip, on the heels of her Friday bombshell announcement that she was resigning as Alaska's governor.

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On Monday, her personal lawyer also spoke about her resignation.
No legal "bombshell" or personal scandal lies behind Palin's resignation, but off-color jokes by talk-show host David Letterman contributed to her decision to step down, Thomas Van Flein said

(snip)

And he said Letterman's early June joke about one of her daughters being "knocked up" by New York Yankees outfielder Alex Rodriguez "demonstrated to her that there's some sort of disconnect here."
"When people don't accept normal bounds of decency making jokes like that about children, maybe this is not good for the state right now," Van Flein said. "And maybe somebody else who is not the subject, and whose family is not the subject of this scrutiny, can move the state forward."
Letterman said the joke was aimed at Palin's older daughter, Bristol, who had a son with her high-school boyfriend in December. However, Palin was in New York traveling with her 14-year-old daughter Willow at the time, and she accused Letterman of making jokes about sex with an underage girl.
The CBS "Late Show" host ultimately apologized, saying "If you have to explain the joke, it's not a very good joke."

Sorry, Sarah. What you are doing would be the very definition of the word quitter.

AFK=Away From Keyboard