The Trump administration has reportedly begun filling important positions in preparations for potential legal showdowns with a House controlled by Democrats.

NBC News, citing two Republican sources, reported on Monday that the preparations involve getting a new legal team set in the White House.

A source familiar with the administration told the news network that the White House is readying for “knock-down, drag-out fight" as the Democrats in the House vow more oversight over the administration.

The fight could play out in a variety of ways, and will likely include congressional subpoenas.

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White House counsel Pat Cipollone officially began his job last week after his security clearance review was completed. He assumes the role a couple months after President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE announced he would replace Don McGahn as the White House’s top lawyer.

The new White House counsel team will include four deputies, NBC News reported, all of whom have been described as respected ex-Justice Department lawyers.

Mike Purpura, a former federal prosecutor and Justice Department official, is becoming the deputy White House counsel, according to NBC News.

The Hill has reached out to the White House for comment.

Democrats are expected to launch investigations on things such as Trump's tax returns and possible interference with Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's investigation.

Democrats are reportedly eyeing more than 80 subjects related to the Trump administration for investigations and subpoenas.

For example, Rep. Adam Schiff Adam Bennett SchiffPelosi, Democrats unveil bills to rein in alleged White House abuses of power Chris Matthews ripped for complimenting Trump's 'true presidential behavior' on Ginsburg Trump casts doubt on Ginsburg statement, wonders if it was written by Schiff, Pelosi or Schumer MORE (D-Calif.), who is likely to be the House Intelligence Committee come January, said Sunday he plans to subpoena information on President Trump's personal business transactions from Deutsche Bank.

The subpoena will be made in regards to allegations that the president's financial interests in Russia are affecting his foreign policy positions, Schiff said.