Screenshot/CBS

Some prominent Democratic candidates put their criticism of President Trump on hold for a moment on Sunday.

Instead, they reprimanded their primary competitor former Vice President Joe Biden for his remarks last week about his civil relationships with segregationists during his time in the Senate.

Biden has been widely criticized for the remarks, and Sens. Kamala Harris (D-Calif.), Bernie Sanders (I-Vt.), and Cory Booker (D-N.J.) all spoke publicly about their issues with the frontrunner's words on Sunday.

Harris, in an appearance on CBS' Face the Nation, said her issue is not with Biden working with people who hold opposing viewpoints, but rather with Biden "praising and coddling individuals who made it their life's work and built their reputations off of segregation." Harris pointed out she would not be in the Senate if those men had had their way.

Sanders, also on Face the Nation, echoed Harris' sentiment, adding that Biden needed to apologize to the American people.

Booker, who appeared on ABC's This Week, said that he has a lot of respect for Biden, but that his comments showed a "lack of understanding," and he knows many African Americans who were hurt by them. Tim O'Donnell