President Trump and the Trump Organization filed a lawsuit Monday against Democrat House Oversight Committee Chairman Elijah Cummings to block a subpoena seeking the President’s financial information.

In the complaint filed in DC federal court Monday morning, Trump’s lawyers said that Democrats have “declared all-out political war” against him, reported CNBC.

“Subpoenas are their weapon of choice,” the filing stated.

Trump’s lawyers also argued that the Democrats are hoping to use the subpoena to for the sake of “exposure with the hope that it will turn up something that Democrats can use as a political tool against the president now and in the 2020 election.”

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Last week, the Democrat-controlled House Oversight and Government Reform Committee chaired by Elijah Cummings, subpoenaed President Trump’s financial information from Mazars, an accounting firm that once prepared Trump’s financial statements.

Cummings based his subpoena on testimony given from Trump’s former lawyer, Michael Cohen, who has been convicted of lying to Congress.

The filing Monday attacked Cohen’s credibility and called his lawyer Lanny Davis, “a political operative for the Democrat party.”

CNBC reported:

In a statement, Cummings said that Trump has a “long history of trying to use baseless lawsuits to attack his adversaries, but there is simply no valid legal basis to interfere with this duly authorized subpoena from Congress.” Cummings added: “This complaint reads more like political talking points than a reasoned legal brief, and it contains a litany of inaccurate information. The White House is engaged in unprecedented stonewalling on all fronts, and they have refused to produce a single document or witness to the Oversight Committee during this entire year.” Mazars and Peter Kenny, the Oversight Committee’s chief investigative counsel, are also listed as defendants in the lawsuit. Trump’s lawyer in the lawsuit, William Consovoy, said in a statement that the attempt by Cummings’ committee to “obtain years’ worth of confidential information from their accountants lacks any legitimate legislative purpose, is an abuse of power, and is just another example of overreach by the president’s political opponents.” Trump’s lawyers argue that Cummings’ subpoena lacks a “legitimate legislative purpose,” and is therefore an invalid action for a congressional committee to take. “With this subpoena, the Oversight Committee is instead assuming the powers of the Department of Justice,” the complaint says.

The House Committee is requesting financial data on Trump going back 10 years after Cohen accused Trump of inflating his net worth so he could attempt to purchase the Buffalo Bills NFL team.

Rep. Cummings said in a memo that the subpoena is also based on “corroborating documents” that “raise grave questions about whether the President has been accurate in his financial reporting.”

Other Democrat Committee chairs are also harassing President Trump with Soviet style investigations — Maxine Waters recently subpoenaed Trump’s financial information from Deutsche Bank and House Intel Chairman Adam Schiff issued subpoenas to Deutsche Bank and other financial institutions on Monday as well.

An attorney for Trump, Jay Sekulow told NBC News: “We will not allow Congressional Presidential harassment to go unanswered.”