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The Clintons had dismissed the legal summonses as "nothing more than a ploy to attempt to embarrass political rivals, as President Trump has directed".
On Monday evening, Clinton spokesman Angel Urea posted on X confirming the couple would appear before the panel.
"They negotiated in good faith," Urea wrote in a tweet directed at the House Oversight Committee. "You did not.
"They told you under oath what they know, but you don't care."
He added: "They look forward to setting a precedent that applies to everyone."