Democratic presidential candidate Julian Castro criticized his fellow opponent Sen. Bernie Sanders (I., Vt.) during a Sunday interview on CNN's State of the Union.

Castro was asked by CNN anchor Jake Tapper to respond to Sanders, who called Castro and Sen. Elizabeth Warren's (D., Mass.) support for reparations unclear and vague.

"What I said was that I've long believed that this country should address slavery, the original sin of slavery, including by looking at reparations. If I'm president, then I'm going to appoint a commission other task force to determine the best way to do that," Castro said.

Castro went on to blast Sanders for ruling out reparations in the form of a cash payment when what he describes as a majority of Sanders's agenda consists of "writing a big check." Sanders has led the way in supporting mammoth programs such as the Green New Deal, "Medicare for all," and tuition-free college.

Castro said: