The House is slated to vote this week on a resolution regarding the next steps in Democrats' impeachment inquiry into President Donald Trump, formalizing the "ongoing, existing investigation" and establishing open hearings.

In a letter to the Democratic caucus, House Speaker Nancy Pelosi of California said Thursday's vote will help the party battle the White House's resistance to the impeachment inquiry and its efforts to block past and present officials from testifying about the president's communication with Ukraine.

"This resolution establishes the procedure for hearings that are open to the American people, authorizes the disclosure of deposition transcripts, outlines procedures to transfer evidence to the Judiciary Committee as it considers potential articles of impeachment and sets forth due process rights for the president and his counsel," the letter from Pelosi reads.

"We are taking this step to eliminate any doubt as to whether the Trump administration may withhold documents, prevent witness testimony, disregard duly authorized subpoenas or continue obstructing the House of Representatives."

Thursday will be the first time that the House will take a floor vote related to the impeachment probe. Republicans have repeatedly criticized Democrats for not holding a floor vote to authorize the impeachment inquiry. They've also accused Democrats of operating without transparency and not granting Trump and his legal team with due process.

Pelosi and Democrats have pushed back that there are no House rules that require such a vote.

"The Trump administration has made up this argument – apparently out of whole cloth – in order to justify its unprecedented cover-up, withhold key documents from multiple federal agencies, prevent critical witnesses from cooperating and defy duly authorized subpoenas," the letter reads.

Democrats have been investigating Trump's July 25 call with Ukrainian President Volodymyr Zelenskiy where he requested that Ukraine look into former vice president Joe Biden and his son Hunter Biden.

Impeachment investigators have been hearing from multiple past and present officials in closed-door depositions over the past few weeks. Acting U.S. Ambassador to Ukraine Bill Taylor had some of the most revealing and damning testimony when he spoke about a major push by Trump officials for Ukraine to publicly announce political investigations in order to set up a White House meeting and receive congressionally approved military aid.