While Perez may want to downplay concerns among Democrats with having Bernie Sanders as the party's nominee, several party leaders have refuse to say whether they will endorse the 78-year-old democratic socialist.
"He's not going to be the nominee," said Rep. Donna Shalala of Florida's 27th Congressional District when asked if she would campaign for Sanders if he were to win the Democratic Party's nomination.
The DNC's embrace of Sanders comes as polls show him increasingly likely to clinch the party's nomination.
Although another recent poll shows Biden continues to maintain his first place position among South Carolina primary voters, his lead has narrowed significantly in recent weeks following his poor performances in Iowa and New Hampshire.
The South Carolina primary is Feb. 29.