House Judiciary Committee Chairman Jerrold Nadler (D-N.Y.) said Monday that Ivanka Trump Ivana (Ivanka) Marie TrumpSpecial counsel investigating DeVos for potential Hatch Act violation: report Trump, Biden vie for Minnesota Trump luxury properties have charged US government .1M since inauguration: report MORE and other associates of the president could "quite conceivably" hear from his committee, despite being left off an initial round of document requests.

"I’m not going to answer why any particular person is or isn’t on it. We think that anybody on it has information of use to the committee in establishing things," Nadler said on CNN's "OutFront."

Nadler said the 81 people and entities identified in a list released earlier in the day had previously provided information to the special counsel's office, the Southern District of New York or other officials.

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While the list included Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE, Eric Trump Eric Frederick TrumpMelania Trump: Ginsburg's 'spirit will live on in all she has inspired' Bipartisan praise pours in after Ginsburg's death Eric Trump says he will comply with New York AG's subpoena only after Election Day MORE and Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE, it did not include the president's daughter and senior adviser.

"She’s not on the initial list. That’s all we can say," Nadler said.

He added that there are going to be more document requests and that "there may or may not be more people."

Asked if Ivanka Trump could be added to the list in the future, Nadler said, "quite conceivably."

Is the Judiciary Committee's investigation into Trump's campaign a pre-impeachment hearing?

Why hasn't Ivanka been contacted?

May subpoenas be issued?@RepJerryNadler fields these questions from @ErinBurnett in his 1st interview since announcing the probe.https://t.co/aDsiAvP2k7 pic.twitter.com/soYG7fP1iW — OutFrontCNN (@OutFrontCNN) March 5, 2019

Nadler on Monday issued the first round of document requests as part of a sweeping investigation into President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's campaign, business and administration. The investigation will focus on three key areas, Nadler said: obstruction of justice, public corruption and abuses of power.

Trump, who over the weekend railed against Democratic oversight efforts, said Monday that he cooperates "all the time with everybody," when asked if he would comply with Nadler's requests. He went on to decry the investigation as a "hoax."

Nadler defended his committee's actions, arguing it's part of the panel's constitutional duty to conduct oversight.

"We’re simply exercising our oversight jurisdiction, and he doesn’t understand it, or he’s not willing to concede to Congress that we have an oversight jurisdiction," Nadler said.

He reiterated that he believes Congress is still "far from" impeachment proceedings. Nadler would oversee such proceedings as chairman of the Judiciary Committee.