Social media users lashed out against Senate Majority Leader Mitch McConnell (R-Ky.) on Friday with the nickname “Moscow Mitch” following his move to kill two election security bills.

On Thursday, McConnell blocked a House measure that would have authorized $775 million to strengthen state election systems in addition to requiring paper ballots. He also quashed another proposal to require candidates, their campaign officials and their families to alert federal authorities if they’re offered aid from foreign governments ― something President Donald Trump himself has not committed to doing.

The next morning, the hashtag #MoscowMitch began spreading on Twitter, appearing to have been sparked by MSNBC’s Joe Scarborough, who slammed McConnell in a fiery rant on his “Morning Joe” broadcast.

“He is aiding and abetting [Russian President] Vladimir Putin’s ongoing attempts to subvert American democracy, according to the Republican FBI, CIA, DNI, intel committee,” he said. “All Republicans are all saying Russia is subverting American democracy and Moscow Mitch won’t even let the Senate take a vote on it. That is un-American.”