References to his alleged ”inexperience” as a one-term U.S. Senator...could also be seen as subtle racial digs, political commentators say.Although ridiculous, I can see at least some sort of logical plausibility over how "elitist" or "radical" could be a "code word." However, I am still scratching my head as to how these people think "inexperienced" has anything to do with slavery.
Inexperience might be a substitute for an idea with roots in the era of U.S. slavery that African Americans couldn’t be trusted.[When it comes to race, U.S. politicians talk in code, By Matthew Bigg, Reuters, August 14, 2008]