President Donald Trump lashed out at Democrats on Wednesday after a lawyers for Hillary Clinton’s campaign and the Democratic National Committee acknowledged helping fund the infamous dossier of alleged links between the Trump campaign and Russia.

“I think it’s a disgrace,” Trump said. “It’s a very sad commentary on politics in this country.”

On Tuesday, The Washington Post reported that Marc E. Elias, a lawyer who represented both the Clinton campaign and the DNC, retained the Washington-based investigative firm Fusion GPS to conduct research.

In August, ABC News reported that Fusion GPS was paid during the heated Republican primaries by a still unknown Republican and then later worked for Democrats, all of whom wanted to dig up dirt on Trump and plant negative news stories, according to political operatives.

The identity of the initial Republican funder of the dossier, however, remains a mystery.

Republican House Intelligence Chairman Devin Nunes approved a subpoena earlier this month that would force the bank handling finances for Fusion GPS to open up its books, which could force the identity of that initial client into public view.

The 35-page dossier, prepared by a former British spy and Moscow station chief named Christopher Steele, alleges the Trump campaign colluded with the Russians, and includes uncorroborated, salacious allegations about Trump himself, which he has repeatedly denied.

Between June 2015 to December 2016, the Clinton campaign paid Perkins Coie $5.6 million in legal fees, according to campaign finance records examined by the Washington Post. And since since November 2015, the DNC paid the firm $3.6 million in “legal and compliance consulting.” It is not possible to know how much of those funds were passed on to Fusion GPS.

As Trump fumed, Democrats defended the campaign and the committee. Former Clinton campaign spokesperson Brian Fallon said the Democrats did nothing wrong.

“I think it’s important to remember that opposition research happens all the time in the campaign,” Fallon said on CNN.

Rep. Eric Swalwell, D-Calif., said the content of the document is more important than the circumstances behind its creation.

“It’s important to know who paid for it,” Swalwell told ABC News. “But it is also important to know if what’s in the dossier is true.”

Source-ABC