South Carolina Democratic Rep. Jim Clyburn said that he was disappointed by the lack of support for Sen. Kamala Harris (D), the black presidential candidate from California.

Pollsters have noted that neither Harris nor the other prominent black presidential candidate, Sen. Cory Booker (D-N.J.), have been able to steal away significant support from the African-American community from former Vice President Joe Biden.

Clyburn, a former chairman of the Black Caucus, expressed his disappointment in Harris and Booker in an interview on Friday.

"[They] been a little bit of amazement to me as well, because I thought for sure that there would be much more of a surge and I can't quite figure that out yet," he told NBC News.

Clyburn said that Harris "hasn't spelled out the policy stuff with her vision."

Both Harris and Booker fall far short in support than former Vice President Joe Biden, the Democratic frontrunner.

"Of course, I just thought Kamala because this just seemed to be the year of the black woman," he added. "I thought she would be surging a little more than she is."

Harris was highly criticized for comparing Immigration and Customs Enforcement to the KKK prior to announcing her presidential campaign.

Despite poor polling in the Democratic primary, Harris comes out above President Donald Trump in recent theoretical head-to-head polling.

Here's a prediction about Kamala's campaign collapse: