From Craig Silverman

Russian trolls posed as black activists on Tumblr and generated hundreds of thousands of interactions for content that ranged from calling Hillary Clinton a “monster” to supporting Bernie Sanders and decrying racial injustice and police violence in the US, according to new findings from researcher Jonathan Albright and BuzzFeed News.

While Facebook and Twitter continue to face intense public and congressional pressure over the activity from trolls working for the Russian Internet Research Agency, Tumblr has somehow managed to escape scrutiny. But the blogging platform was in fact home to a powerful, largely unrevealed network of Russian trolls focused on black issues and activism.

“The evidence we’ve collected shows a highly engaged and far-reaching Tumblr propaganda-op targeting mostly teenage and twenty-something African Americans. This appears to have been part of an ongoing campaign since early 2015,” said Albright, research director of the Tow Center for Digital Journalism at Columbia University.

No surprises there, then.