A judge ruled in favour of a House panel seeking Trump’s financial records from his accounting firm on Monday.

US President Donald Trump on Tuesday appealed a federal judge’s ruling against his attempt to block a House of Representatives committee from seeking his financial records, according to a court filing.

Lawyers for Trump and his company filed the appeal in US District Court for the District of Columbia one day after a judge backed the House Oversight Committee’s subpoena for Trump’s financial records from his accounting firm Mazars LLP.

The lower court’s decision on Monday handed an early setback for the Republican president in his legal battle with congressional Democrats as politicians investigate various aspects of his administration.

The House Oversight Committee has said it needs Trump’s financial records to examine whether he has conflicts of interest or broke the law by not disentangling himself from his business holdings, as previous presidents did.

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Trump’s lawyers argue the panel’s demand exceeded Congress’s constitutional limits. Mazars has said it will comply with its legal obligations but has taken no sides as the case plays out in court.

A real estate developer and former reality television star, Trump still owns the Trump Organization but has said he would leave its day-to-day operations to his eldest two sons while in office.

Unlike previous modern US presidential candidates, he did not disclose his tax returns during his run for the White House.

Separately, a hearing is planned in New York on Wednesday in a case involving an effort by Trump, his business and his family to prevent Deutsche Bank and Capital One from complying with subpoenas from two House committees for banking and financial records.