That is an interesting charge. Do you have anything to back it up?
My memory is quite different. I suspect you are mixing up Dean Weingarten with Gene Weingarten, or perhaps Randy Weingarten. Both of the later are committed Leftists.
Gene Weingarten writes for the Washington Post. Randy Weingarten is President of the American Federation of Teachers.
Dean Weingarten graduated from the University of Wisconsin. Is that your alma mater?