Jews.
From the time she called Jews "unperfected" on national TV to this, it's obvious Coulter is channeling her inner Julius Streicher.
Coulter Dog Whistling that Old Time Anti-Semitism
By Frederick Clarkson Mon Aug 17, 2009 at 04:32:39 PM EST print story
Ann Coulter is a provocateur who has mastered the art of convolution in the service of the unspeakable. One of her methods is to thinly cloak her most despicable ideas inside analogy and wit. (Among many such infamous episodes, she has distinguished herself as an apologist, if not an advocate for, the assassination of abortion providers.)
The latest example of her method of making despicable assertions by analogy and indirection -- is Jew-baiting. This ugly turn of events, via ugly turns of phrase, comes in response to a column by conservative writer Kathleen Parker had dared to criticize Religious Right darling Sarah Palin. Coulter, among others, has been seeking to drive Parker out of the conservative movement for having the temerity to criticize Palin. The Coulter's latest volley is an attack on the authenticity of Parker's southern heritage in much the way that the birthers seek to discredit president Obama' American citizenship. While few might care whether Coulter thinks Parker is sufficiently southern, it is the way she goes about it that it gets ugly.
http://www.talk2action.org/story/2009/8/17/163239/052/Front_Page/Coulter_Dog_Whistling_that_Old_Time_Anti_Semitism