A court filing by 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 attorney in an ongoing defamation lawsuit could open the president to a possible deposition.

Attorney Marc Kasowitz filed an answer to former "Apprentice" contestant Summer Zervos's lawsuit in New York state Supreme Court on Tuesday, enabling Zervos's legal team to request to formally question the president under oath.

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In the filing, Kasowitz denied a series of allegations against Trump and repeatedly asserted that the president is immune from prosecution under the supremacy clause of the Constitution.

Zervos's lawsuit alleges that Trump defamed her by publicly declaring she had fabricated her claims that Trump sexually assaulted her in 2007.

In a statement to CNN, Zervos's attorney, Mariann Meier Wang, said the denials filed in Kasowitz's answer were "baseless."

"Just like any other person being sued in a court of law in this country, the defendant was today required to answer the complaint filed by Ms. Zervos," she said. "We look forward to proving that his denials are baseless."