Former White House press secretary Sarah Huckabee Sarah Elizabeth SandersSarah Sanders on Trump's reported war dead criticism: 'Those comments didn't happen' Sarah Sanders memoir reportedly says Trump joked she should hook up with Kim Jong Un McEnany stamps her brand on White House press operation MORE Sanders on Wednesday slammed the Democrats' impeachment inquiry into President Trump Donald 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, calling it "one of the dumbest and most embarrassing political moves of all time."

"Democrats launching impeachment over this has to go down as one of the dumbest and most embarrassing political moves of all time — so bad it should be reported as an in-kind contribution to President @realDonaldTrump’s 2020 re-elect," tweeted Sanders, who has maintained a positive relationship with the president since leaving the White House.

Democrats launching impeachment over this has to go down as one of the dumbest and most embarrassing political moves of all time - so bad it should be reported as an in-kind contribution to President @realDonaldTrump’s 2020 re-elect. #MAGA — Sarah Huckabee Sanders (@SarahHuckabee) September 25, 2019

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Speaker Nancy Pelosi Nancy 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.) late Tuesday announced the impeachment inquiry after reports that Trump pressed Ukrainian President Volodymyr Zelensky to investigate former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE and his son after withholding aid from the nation.

The White House on Wednesday released a partial transcript of a July call in which he told his Ukrainian counterpart that "Biden went around bragging that he stopped the prosecution so if you can look into it."

"It sounds horrible to me,” Trump added.

Trump said he withheld aid because he wanted other countries to give more money to help Ukraine.

He has slammed the inquiry as a "witch hunt" and denied wrongdoing.

The impeachment inquiry's announcement followed a new wave of support for impeachment proceedings from House Democrats following the Ukraine revelations.

The Republican National Committee, Trump's reelection campaign and a joint fundraising committee raised $1 million on Tuesday after impeachment-related fundraising efforts, according to an RNC official.