Clinton launches new Iowa ad

With the Democratic race for Iowa intensifying, Hillary Clinton is now on air there with her first TV ad of the campaign, a 60-second spot that says she will fight for the "invisible" people that President Bush can't see. "Hillary Clinton has spent her life standing up for people others don't see," the narrator says. (Watch the ad here.)

Recent polls have shown a tight race in Iowa among Clinton, Barack Obama, and John Edwards, who is staking his campaign on a strong showing in the caucus there in January.

Also today, check out this interesting piece in The Los Angeles Times about how many documents pertaining to Clinton's years as first lady remain unavailable to the public.