Acting Director of National Intelligence Joseph Maguire is defending his handling of a whistleblower complaint that is said to relate to President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE's discussions with Ukraine, vowing in a statement Tuesday to handle the situation "appropriately."

“I have sworn an oath to the Constitution 11 times in my 36 years of public service and view it as a covenant with every American that I will well and faithfully discharge the duties of my office. In light of recent reporting on the whistleblower complaint, I want to make clear that I have upheld my responsibility to follow the law every step of the way,” Maguire said in a statement Tuesday evening.

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“I am committed to protecting whistleblowers and ensuring every complaint is handled appropriately. I look forward to continuing to work with the Administration and Congress to find a resolution regarding this important matter,” he added.

Maguire, a Trump appointee, weighed in amid mounting scrutiny over the complaint filed by a member of the U.S. intelligence community that reportedly raised concerns about Trump's interactions with a foreign government related to Ukraine.

The complaint has been at the center of a fierce battle between the Trump administration and Congress, with lawmakers seeking to obtain a copy.

Trump has in recent days defended a July phone call he had with Ukrainian President Volodymyr Zelensky. He has acknowledged bringing up former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE, whom he reportedly encouraged Ukraine's leader to investigate.

Trump also has admitted that he ordered millions of dollars in aid to Ukraine to be withheld before the conversation, though he maintains that no quid pro quo was discussed regarding a possible investigation into Biden and that the aide was held up amid a push for other European countries to also contribute to the matter.

The president in recent days has resurfaced claims that Biden abused his power during his time as vice president when he lobbied Kiev to dismiss a prosecutor who was investigating a natural gas company owned by a Ukrainian oligarch whose board members included Biden’s son Hunter Biden. No evidence has emerged that Biden was acting to protect his son.

The whistleblower complaint is believed to center around the conversation between Trump and Zelensky, expressing alarm about a “promise” that was made.

Trump will reportedly release the complaint to Congress later this week, and Maguire is scheduled to meet with the Senate Intelligence Committee on Thursday.