Another might be to say to the host:
Truth is zero has set race relations back in the country over 20 years so don't blame me for something your dear leader has done.
I have not seen it used much but “racer” makes a lot of sense to me to describe someone who uses race and race-baiting to disparage conservatives.
http://ca.answers.yahoo.com/question/index?qid=20110429165000AAt4yTd
Again YES!!! That's something that I haven't heard anyone say on TV or radio and it's so demonstrably TRUE!
I've heard people make comments about his claim of being post-racial is not true, but no one has had the guts to say it straight out that his constant racism (not JUST playing the race card) has set race relations back...