Hillary Clinton Campaign Agrees to 4 More Debates

PHOTO: Sen. Bernie Sanders, gestures towards former Secretary of State Hillary Clinton during a democratic presidential primary debate at the Gaillard Center, Jan. 17, 2016, in Charleston, S.C.PlayMic Smith/AP
WATCH Clinton Brings Out 'Big Guns' in Final Sprint in Iowa

The Hillary Clinton campaign has agreed to participate in four more debates, an aide said Saturday.

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It's unclear if the Democratic National Committee had signed off on any of the debates. A top adviser for Vermont Sen. Bernie Sanders said the campaign was nearing an agreement on more debates.

"Details are still being worked out on when and where additional debates will occur," said the adviser. "We hope to reach an agreement soon."

Clinton, who polls show is running neck-in-neck with Sanders ahead of Monday's Iowa caucuses and trails him in New Hampshire, has urged the party to add a debate before the primary in New Hampshire.