Russian accounts targeted Sanders voters to try to boost Trump after 2016 primaries: report

Thousands of Russian Twitter accounts turned their misinformation focus to supporters of Sen. Bernie SandersBernie SandersSupport drops for Medicare for All but increases for public option Hillicon Valley: Warren takes on Facebook over political ads | Zuckerberg defends meetings with conservatives | Civil liberties groups sound alarm over online extremism bill On The Money: Trump touts China trade deal | Wall Street, Washington see signs for caution | Trump threatens sanctions on Turkey | Sanders proposes sharp hike to corporate taxes MORE (I-Vt.) in 2016 after he lost the Democratic Primary to Hillary ClintonHillary Diane Rodham ClintonSaagar Enjeti: Tuesday's Democratic debate already 'rigged' against Gabbard, Sanders Ilhan Omar raises .1 million in third quarter Bloomberg rethinking running for president: report MORE.

A study by Clemson University researchers reported by The Washington Post found that thousands of tweets from Russian-owned accounts masquerading as conservative accounts supporting President TrumpDonald John TrumpBusiness school deans call for lifting country-specific visa caps Bolton told ex-Trump aide to call White House lawyers about Ukraine pressure campaign: report Federal prosecutors in New York examining Giuliani business dealings with Ukraine: report MORE began targeting Sanders's supporters shortly after the primary concluded.

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“#BlackMenForBernie Leader Switches to Trump! I will Never Vote for Hillary, Welcome aboard the Trump Train,” read one tweet sent by a Russian account pretending to be a "Southern., Conservative Pro God, Anti Racism" Twitter user from Texas.

“Conscious Bernie Sanders supporters already moving towards the best candidate Trump! #Feel the Bern #Vote Trump 2016,” read another account known as "Red Louisiana News" that was actually operated by Russians.

It's not clear how successful or effective the efforts were.

About 12 percent of Sanders voters said they ended up voting for Trump over Clinton in the general election, according to the Post. That was smaller than the 24 percent of Clinton supporters who said they voted for Sen. John McCainJohn Sidney McCainThe Hill's 12:30 Report: Video depicting Trump killing media, critics draws backlash Backlash erupts at video depicting Trump killing media, critics Cindy McCain condemns video of fake Trump shooting political opponents, late husband MORE (R-Ariz.) in his 2008 bid for the White House against the eventual winner, President Obama.

Still, the number of Sanders voters who supported Trump in Michigan, Wisconsin and Pennsylvania — states considered key to Trump's victory — was higher than Trump's margin of victory in those states.

“I think there is no question that Sanders was central to their strategy,” Darren Linvill, one of the two Clemson researchers behind the study, told the Post. “He was clearly used as a mechanism to decrease voter turnout for Hillary Clinton.” 

A spokesman for Clinton said that it was imperative that Democrats work together in 2020 to stop Russian disinformation efforts aiding the president and to defeat Trump.

It's important for “everyone else, especially Democratic candidates, to work together and support each other to defend against these threats," Nick Merrill told the Post.

The Hill has reached out to the Sanders campaign for comment.