Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezOn The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline McCarthy says there will be a peaceful transition if Biden wins Anxious Democrats amp up pressure for vote on COVID-19 aid MORE (D-N.Y.) is amplifying her calls for the House begin impeachment proceedings against President TrumpDonald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

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While Speaker Nancy PelosiNancy PelosiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Health Care: New wave of COVID-19 cases builds in US | Florida to lift all coronavirus restrictions on restaurants, bars | Trump stirs questions with 0 drug coupon plan Overnight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds MORE (D-Calif.) and other congressional leaders have tried to tamp down impeachment talk, Ocasio-Cortez and other voices on the left have been growing impatient as the White House increasingly rejects congressional oversight efforts.

“We have to move forward,” Ocasio-Cortez told CNN on Tuesday. “I trust the Speaker's taking a measured approach to ensure that we’re moving everyone forward." 

“Being a Speaker is hard, and holding this party together is a difficult task,” she added, “but I think we have to move forward.”

The House is currently conducting multiple investigations into Trump in the wake of special counsel Robert MuellerRobert (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 probe into Russian election interference, but the president is increasingly ignoring subpoenas and telling officials not to testify.

Former White House counsel Don McGahn on Tuesday defied a subpoena from the House Judiciary Committee after being advised to do so by the administration, prompting Judiciary Chairman Jerrold NadlerJerrold (Jerry) Lewis NadlerDemocrats shoot down talk of expanding Supreme Court Schumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (D-N.Y.) to accuse Trump of witness intimidation.

“Our subpoenas are not optional,” Nadler said Tuesday. “Mr. McGahn has a legal obligation to be here for his scheduled appearance. If he does not immediately correct his mistake, this committee will have no choice but to enforce the subpoena against him.”