A top Democratic super PAC is launching a war room that promises to make President-elect Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE’s life miserable as he prepares to enter the White House.



Liberal political operative David Brock, a close ally of former Democratic presidential nominee Hillary Clinton, told reporters on Tuesday that his super PAC, American Bridge, has established a war room that will act as an aggressor and a watchdog for the Trump transition team and his incoming administration.





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Brock claims to have the largest archive of Trump opposition research in the Democratic Party, including thousands of hours of footage that operatives are mining for damaging material.“The Trump administration is shaping up to be one of the most corrupt since the Gilded Age,” Brock said. “American Bridge will use everything at its disposal to hold it accountable.”

American Bridge has established a rapid response team that will fact-check Trump’s claims in real time. Experts are said to be combing through Trump’s domestic and foreign business interests, his personal life, his charitable foundation and those he has associated with, using Freedom of Information Act requests to uncover new details.

Its findings will be passed along privately to the media, to lawmakers on Capitol Hill and even to Trump’s own supporters in an effort to undermine the president-elect.

Brock’s nakedly political tactics rub some in the party the wrong way.

Progressive strategist Jonathan Tasini, who supported Sen. Bernie Sanders Bernie SandersButtigieg stands in as Pence for Harris's debate practice Bernie Sanders warns of 'nightmare scenario' if Trump refuses election results Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (I-Vt.) in the Democratic primaries, told The Hill that attacks from Clinton’s allied groups failed to make an impact on the election because Democrats didn’t give voters a reason to support their vision for the country.

“People won’t come to the Democratic Party unless we show an alternative; it’s not just about the dark art of attacking and destroying Donald Trump,” Tasini said. “David Brock is the worst possible messenger for Democrats. He should not be given a single dollar more.”

Tasini would rather see Democratic donors funding other party activities, instead of supporting Brock.

“Everything should go to rebuilding the party and energizing activists. The election results speak to how effective his strategy has been,” Tasini said.

But Brock took credit for his attack lines dragging Trump’s popularity to historic lows for a president-elect, even if it wasn’t enough to beat back Trump’s insurgent campaign.

He argued that the headwinds Clinton faced — a deep-seated desire for change and roiling anger at political elites — are what ultimately doomed the Democrat.

“There were factors that overcame voters’ view that Trump is unfit for office,” Brock said. “They voted for him despite that.”

Brock’s web of liberal groups raised some $75 million in the 2016 cycle.



In addition to American Bridge, Brock’s network of liberal groups includes the media watchdog Media Matters, the judicial and regulatory group Citizens for Responsibility and Ethics in Washington (CREW) and the social media platform Shareblue.



All are in the process of reinventing themselves in the age of Trump.



Brock has told The Hill that Shareblue could turn into the “Breitbart of the left” — as long as it receives a significant financial investment.



He’s seeking additional funding for CREW, saying he hopes it will rival the conservative watchdog group Judicial Watch. Judicial Watch had a huge impact on the 2016 elections, using regulatory channels to create a steady flow of problems for Clinton, most often related to her use of a private email server while secretary of State.



And Brock said that Media Matters will need to retrain its focus from monitoring Fox News and conservative talk radio to combating a scourge of fake news and conspiracy theories that have percolated online.



Brock and many Democrats partially blame Clinton’s loss on a proliferation of fake news spread across social media platforms like Facebook.



“A lot of garbage came spewing out of Facebook, and these companies need to adopt new standards and clean their own house,” Brock said. “We’ll be involved in a campaign to push them to do that.”



Democrats are clinging to what looks like a healthy popular vote victory for Clinton to question Trump’s legitimacy.



“The public demands this. Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE got more votes for president than anyone in history,” said Democratic strategist James Carville. “She’ll win the popular vote by more than 2 percent, or 2.5 million votes. It would be a dereliction of duty not to do something of this magnitude.”



Brock said he didn’t have a price tag yet for the new initiatives at American Bridge but said he’d heard from donors who were energized by Clinton’s loss and eager to contribute to combating Trump.



Brock has invited 225 current donors and 175 prospective donors to a meeting in Palm Beach, Fla., over Trump’s inaugural weekend as he seeks to fund the groups he hopes will rival the Koch brothers’ network of influence on the right.

Still, several top Clinton donors interviewed by The Hill have expressed deep frustration with the direction of the party and say they’ll remain on the sidelines as Democrats rebuild.

Brock said he's hopeful Clinton will join the fight once the sting of her election defeat is behind her.

"We'd like to see her engaged when she's ready," Brock said.

This isn't Brock's first time looking for damaging information on an administration. In the '90s, before his politics changed, Brock dogged the Bill Clinton administration with reporting on the president's sex life.