Most people thought it was a good thing that Bill and Hillary Clinton made their daughter off-limits for political purposes during their campaigns and their tenures in office. That was true across partisan lines and it should be true now, too.
If you've been following politics, you've seen the ugly rumors floating around about Gov. Palin and her recent pregnancy -- and that of her daughter's recently-announced pregnancy. I'll not repeat them here. Instead, I'll provide a link to a Time report about how Bristol Palin's pregnancy was not much of a secret in her small town, and how the people of Wasilla, Alaska have quietly demonstrated values and behavior of a far more admirable water than either journalists or partisan hacks of varying pay grades.
The other link is to a CNN story relating Barack Obama's response to the shitstorm -- according to the Democratic Party's nominee, Sarah Palin's family is off limits. You can criticize Governor Palin, you can question whether she has sufficient knowledge or experience to serve in a high office, you can take issue with her policy positions. That's a pretty broad field of attack for Democrats, liberals, progressives, and anyone else dismayed with the choice of Sarah Palin to be John McCain's running mate. But no personal attacks on her family. That seems like good behavior, and good politics, to me.