WASHINGTON — The House Intelligence Committee has released its report detailing President Trump’s conduct regarding Ukraine, plunging into a landmark impeachment week. 

The report is 300 pages long and outlines the lawmakers’ argument that Trump abused his powers as president to pressure Ukraine's president to investigate Joe Biden.

“We want to thank the Members and staff of the House Intelligence, Oversight and Reform, and Foreign Affairs Committees for their hard work in conducting this investigation over the last three months and preparing this report," Chairman Adam Schiff, Chairwoman Carolyn B. Maloney and Chairman Eliot Engel said in a press release. "The evidence is clear that President Trump used the power of his office to pressure Ukraine into announcing investigations into his political rival, former Vice President Joe Biden, and a debunked conspiracy theory that it was Ukraine, not Russia, that interfered in the 2016 election. These investigations were designed to benefit his 2020 presidential reelection campaign."

House Representative Liz Cheney, in a press conference Tuesday night said that the Democrats have "fundamentally failed to prove their case," going on to say that the House Intelligence Committee has been hijacked and forced to focus on a "sham impeachment" inquiry. 

The White House responded to the report's release, saying it "reads like the ramblings of a basement blogger." 

“At the end of a one-sided sham process, Chairman Schiff and the Democrats utterly failed to produce any evidence of wrongdoing by President Trump," said Press Secretary Stephanie Grisham in a statement. "This report reflects nothing more than their frustrations. Chairman Schiff’s report reads like the ramblings of a basement blogger straining to prove something when there is evidence of nothing.” 

RELATED: Pompeo: Impeachment work should pause while Trump is abroad

RELATED: House impeachment report goes to lawmakers Monday ahead of judiciary hearing

Lawmakers got their first look at the House Intelligence Committee’s impeachment report Monday night behind closed doors. The findings are expected to forcefully make the Democrats’ case that Trump engaged in what Schiff calls impeachable “wrongdoing and misconduct” in pressuring Ukraine to investigate Democrats and Joe Biden while withholding military aid to the ally.

Republicans called the proceedings simply a "hoax" ahead of the report’s public release, with Trump insisting he did nothing wrong and his GOP allies in line behind him. Trump tweeted his daily complaints about it all and then added a suggestive, if impractical, question: “Can we go to Supreme Court to stop?”

With the Judiciary Committee set to launch its first hearing Wednesday, the impeachment proceedings are presenting a historic test of political judgment in a case that is dividing Congress and the country.

Departing for a NATO meeting in London, Trump criticized the House for pushing forward Monday with proceedings while he was heading overseas, a breach of political decorum that traditionally leaves partisan differences at the water’s edge.

He predicted Republicans would actually benefit from the entire impeachment effort against him, though “it’s a disgrace for our country.”

For the Democrats, House Speaker Nancy Pelosi faces a critical moment of her leadership as she steers the process ahead after resisting the impeachment inquiry through the summer, warning it was too divisive for the country and required bipartisan support.

Speaking to reporters at the international climate conference in Madrid, Pelosi declined to engage with impeachment questions. “When we travel abroad, we don't talk about the president in a negative way,” she said. “We save that for home.”

Possible grounds for impeachment are focused on whether Trump abused his office as he pressed Ukrainian President Volodymyr Zelenskiy in a July 25 phone call to launch investigations into Trump’s political rivals. At the time, Trump was withholding $400 million in military aid, jeopardizing key support as Ukraine faced an aggressive Russia at its border.

The report, which the Intelligence panel will vote on Tuesday, also is expected to include evidence the Democrats say suggests obstruction of Congress, based on Trump’s instructions for his administration to defy subpoenas for documents and testimony.

The next step comes when the Judiciary Committee gavels open its own hearing with legal experts to assess the findings and consider potential articles of impeachment ahead of a possible vote by the full House by Christmas. That would presumably send it to the Senate for a trial in January.

The Democratic majority on the Intelligence Committee says its report, compiled after weeks of testimony from current and former diplomats and administration officials, will speak for itself in laying out the president’s actions toward Ukraine.

Republicans pre-empted the report’s public release with their own 123-page rebuttal.

In it, they claim there’s no evidence Trump pressured Zelenskiy. Instead, they say Democrats just want to undo the 2016 election. Republicans dismiss witness testimony of a shadow diplomacy being run by Trump lawyer Rudy Giuliani, and they rely on the president’s insistence that he was merely concerned about “corruption” in Ukraine — though the White House transcript of Trump’s phone call with Zelenskiy never mentions the word.

“They are trying to impeach President Trump because some unelected bureaucrats chafed at an elected President’s 'outside the beltway' approach to diplomacy,” according to the report from Republican Reps. Devin Nunes of California, Jim Jordan of Ohio and Michael McCaul of Texas.

Rep. Jim Jordan, R-Ohio, appeared to be the only lawmaker who viewed the Democratic report Monday evening when it became available behind closed doors for members of the intelligence panel. He said it was “long.”

Jordan declined to discuss details, but said it’s the same “lame case” Democrats presented throughout impeachment hearings.

“The president did nothing wrong,” Jordan said. “The facts are on our side.”

Trump on Monday pointed to Zelenskiy’s recent comments as proof he did nothing wrong. The Ukrainian president said in an interview he never talked to Trump “from the position of a quid pro quo,” but he didn’t say Trump did nothing wrong. In fact, he had strong criticism for Trump’s actions in the Time magazine interview.

With Ukraine at war with Russia, he said, its partners “can’t go blocking anything for us.”

Schiff said the GOP response was intended for an audience of one, Trump, whose actions are “outside the law and constitution.”

The finished Intelligence Committee report sets up the week’s cascading actions.

Democrats could begin drafting articles of impeachment against the president in a matter of days, with voting in the Judiciary Committee next week.

Republicans on the committee, led by Rep. Doug Collins of Georgia, plan to use procedural moves to stall the process and portray the inquiry as unfair to the president.

The White House declined an invitation to participate, with Counsel Pat Cipollone denouncing the proceedings as a “baseless and highly partisan inquiry” in a letter to Judiciary Chairman Jerrold Nadler, D-N.Y.

Trump had previously suggested that he might be willing to offer written testimony under certain conditions, though aides suggested they did not anticipate Democrats would ever agree to them.

Cipollone’s letter of nonparticipation applied only to the Wednesday hearing, and he demanded more information from Democrats on how they intended to conduct further hearings before Trump would decide whether to participate.

Nadler said Monday if the president really thought his call with Ukraine was “perfect,” as he repeatedly says, he would “provide exculpatory information that refutes the overwhelming evidence of his abuse of power."

House rules provide the president and his attorneys the right to cross-examine witnesses and review evidence before the committee, but little ability to bring forward witnesses of their own.

Asked why not have his lawyers participate, Trump said Monday: “Because the whole thing is a hoax. Everybody knows it.”

___

Associated Press writers Zeke Miller and Jill Colvin contributed to this report.