If the full House eventually votes to approve formal impeachment charges, a trial would be held in the Republican-led U.S. Senate, where a two-thirds majority of those present would be required to convict Trump and remove him from office.
The House Intelligence Committee has held public and private hearings investigating the president for the past three months.
"It was a hard decision to go down this road, because it's so consequential for the country", Schiff said. But "the president was the author of his own impeachment inquiry by repeatedly seeking foreign help in his election campaigns". Still, Turley doesn't excuse the president's behaviour.
As Washington reengaged in the impeachment drama after Thanksgiving, the timetable for the process remained unclear.
Only two United States presidents in history - Bill Clinton and Andrew Johnson - have been impeached, but neither was convicted.
House Intelligence Committee Chairman Adam Schiff, who has led the 10-week-old investigation, said it was important to move quickly because the evidence of Trump's wrongdoing is "overwhelming".
From the sidelines of a North Atlantic Treaty Organisation summit in London, Trump attacked the inquiry and said key witnesses had not been called.
Democrats presented a forceful case for impeaching and removing President Donald Trump from office Tuesday in a report detailing "overwhelming evidence" of misconduct in office and obstruction by the U.S. leader.
The report says former Ukraine Ambassador Marie Yavonovitch was removed from her post in order to facilitate the investigation.
It said the inquiry "uncovered a months-long effort by President Trump to use the powers of his office to solicit foreign interference on his behalf in the 2020 election".
"The impeachment inquiry has found that President Trump, personally and acting through agents within and outside of the US government, solicited the interference of a foreign government, Ukraine, to benefit his reelection", the report reads. When Congress began investigating, it added, Trump obstructed the investigation like no other president in history.
The House Intelligence Committee is scheduled to meet at 6pm EST (7am on Wednesday, Singapore time) to vote on its findings. Schiff said his panel would continue its probe.
The 300-page report, meant to serve as the basis for articles of impeachment, also mapped out in detail what it called an unparalleled effort of obstruction, including witness intimidation, to stifle the investigation into Trump's Ukraine scheme.
Democrats say Mr Trump dangled two bargaining chips - $400m (£309m) of military aid to Ukraine that had already been allocated by Congress, and a White House meeting with Ukraine's new leader. Democrats, they argue, just want to undo the 2016 election.
"Great job!" Trump tweeted of Republicans.
Lawyers for the House have argued that they need to see that material in part because it could further illuminate the question of whether Trump lied to Mueller, a matter they have said is part of their impeachment inquiry. Well, if it does, then the Democrats have done a very great disservice to the country, which they have.
The findings are set to be handed over to the House Judiciary Committee, which is taking over the next phase of the impeachment inquiry.
Possible grounds for impeachment are focused on whether Trump abused his office as he pressed Ukrainian President Volodymyr Zelenskiy to open investigations into Trump's political rivals. At the time, Trump was withholding $400 million in military aid, jeopardizing key support as Ukraine faces an aggressive Russian Federation at its border.
It called the evidence of Trump's misconduct and obstruction "overwhelming".
That panel, under chairman Jerrold Nadler of NY, will begin formal impeachment hearings on Wednesday with the task of actually deciding whether to bring any articles against Trump to the House floor for a vote.
The White House declined an invitation to participate Wednesday, with counsel Pat Cipollone denouncing the proceedings as a "baseless and highly partisan inquiry".
It has not yet been decided how many hearings Judiciary might hold or what charges potentially might be wrapped into articles of impeachment.
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.