Some of the groups are associated with causes now under attack by the Trump administration. Arabella’s founder, Eric Kessler, and its senior managing director, Bruce Boyd, worked for national environmental groups early in their careers. Arabella declined to make Kessler or Boyd available for comment.

Trump Critic

The Center for American Progress is a fierce critic of the Trump administration and its policies, and has called for a deeper investigation into contacts by Trump’s inner circle with Russian officials.

It’s unclear if Trump or his top aides have been briefed on the investigation.

The President has accused liberal groups of sending protesters to congressional town halls, mocking his opponents in a tweet on Feb. 21. “The so-called angry crowds in home districts of some Republicans are actually, in numerous cases, planned out by liberal activists. Sad!,” Trump tweeted from his personal account.

Regardless of who is behind the latest round of hacks and ransom requests, there is also indication that state-sponsored hackers continue a broader targeting of liberal groups in the U.S.

Emails Targeted

The day after the election, the FSB, Russia’s main intelligence agency, targeted the personal emails of hundreds of people, including national security experts, military officers and former White House officials, according to data provided by cyber security researchers who are tracking the spying and who asked not to be identified because of the risks of retaliation. The list was weighted toward people who have worked in Democratic administrations or who are linked with liberal causes.

Among those targets was Kate Albright-Hanna. She worked for Barack Obama in his first presidential campaign in 2008 and then briefly in the White House Office of Health Care Reform.

That was eight years ago. Since then she has worked on a documentary about corruption in New York and developed a network of investigative journalists and activists, not the most obvious target for Russian espionage.