Veteran Democratic pollster Cornell Belcher explained what he believes is the racist element to Arkansas Gov. Sarah Huckabee Sanders (R) recent swipe at Vice President Kamala Harris , the Democratic presidential nominee.

Sanders, a former Trump White House press secretary, drew backlash this week for saying at a town hall event with GOP nominee Donald Trump that Harris doesnt have anything to keep her humble because she doesnt have biological children.

Belcher, talking to MSNBCs Nicolle Wallace on Thursday, said he agreed with all the criticism thats been leveled at Sanders and then leaned into another dimension of the comment, which he argued was a racist dog whistle.

Look, as a child of the South, someone who was born and raised in the South, and hearing a deeply Southern governor say that word humble, it stinks of a racial trope that I think Im very familiar with, and the key word being humble, said Belcher, who worked on both of former President Barack Obama s campaigns.

Because its always been about you uppity Blacks and you got to know your roots, he continued. Its a dimension that I think theyre leaning into, and they lean into constantly and Vice President Harris is an uppity Black who doesnt know her place, and she needs to be humble. Thats how I connect the dots on this.

I have put it within the context of them leaning into racial aversion and aggrievement politics, and this is absolutely a dog whistle, historical dog whistle when youre talking about Blacks not being humble and not knowing their place, Belcher added.

Wallace agreed it was the through line of what Sanders was talking about.