It's nice that a site has bothered to check the facts.  I work for a PPC company and have been trying to get this point across all day.  Google's done nothing wrong -- I've run into this policy all the time, and you CAN still use "moveon.org" as a keyword.  Don't believe me?  Google it -- you'll get an ad that says "Support Susan Collins" that has the same text as her old ad but without the offending phrase.  Collins' could put her ad back up if she wanted, she just has to change the ad text.

 There is NO conspiracy here!