Meanwhile, Trump is rejecting the latest round of ethics complaints - "and his allies warn that the ever-multiplying probes could derail the Democrats' legislative agenda", as Fox News reported.
The House Judiciary Committee will vote Thursday to establish rules for hearings on impeachment, escalating the panel's investigations of President Trump even as many Democrats remain wary of the effort.
On Monday, Pelosi appeared to downplay this week's upcoming vote by the House Judiciary Committee.
Additionally, it would permit evidence to be received in a closed executive session.
"Without Chairman Nadler setting a date for a vote on articles of impeachment, it's clear that Speaker Pelosi and Democratic Leadership are still putting the brakes on impeachment". However, she said that the committee has her support and that it is executing the party's demands.
For example, there could be hearings covering "startling" new evidence regarding potential violations of the emoluments clause that prohibits self-enrichment, such as a move by Trump to host next year's G-7 summit at his Doral, Fla., resort and Vice President Pence's recent stay at a Trump resort in Ireland, committee aides said. As the case for impeachment continues to build and the presidential election draws near, Democrats are essentially pocketing special counsel Robert Mueller's Russian Federation investigation and moving onto what they view as less debatable indiscretions allegedly conducted by the president and administration, such as alleged violations of the Constitution's Emoluments Clause.
Nadler has since expanded the probe to cover other, different mind-boggling allegations, including Trump's company allegedly profiting from business with foreign governments and his alleged promise of pardons to top officials who agreed to break the law in building his border wall.
More than half of the Democratic caucus has come out in support of an impeachment inquiry, with more than two-dozen of the new advocates coming forward since former special counsel Mueller's testimony in July.
The group also noted on Twitter that during Congress's August recess, grassroots demonstrators helped gain the support of more than a dozen Democrats who joined the majority of their colleagues in the House in backing impeachment proceedings against Trump.
However, Mr. Nadler has been embracing the investigation as formal impeachment proceedings throughout the last few weeks in public interviews and his arguments in federal court.
And with summer over, Democrats want to pick up the pace.
They are also expected to provide the committee with a broader ability to subpoena witnesses and documents, in the face of resistance by the White House. "The equities we have to weigh are our responsibility to protect and defend the Constitution and to be unifying and not dividing".