You definitely don't want to hashtag everything you tweet about Mitch McConnell with #MoscowMitch, because being called "Moscow Mitch" is enraging the Senate majority leader who seems intent on allowing Russia to continue to interfere in our elections. The New York Times reports that he is "incensed by the name 'Moscow Mitch,' and even more miffed that he has been called a 'Russian asset' by critics who accuse him of single-handedly blocking stronger election security measures after Russia's interference in 2016." This is definitely a case of the truth hurting, because he is most definitely blocking that legislation.
The vote that he did allow, to lift sanctions on Russian oligarchs' companies, isn't getting as much national media attention yet, but it might still break through. Because ending those sanctions on Rusal, election spoiler Oleg Deripaska's company, ended up in a really sweet deal for his home state of Kentucky, a $200 million investment in an aluminum plant. Speaking of home, #MoscowMitch is hitting uncomfortably close to it for him. Literally. It's on the local news in Kentucky. "'Democrats want more aggressive legislation to protect America's elections after Robert Mueller's stark warning about Russian interference,' began one report aired on a Louisville television station last week. 'Mitch McConnell blocked it.'" McConnell is running for reelection right now, and that's the kind of press he is not used to and does not want to see.
He's also, surprisingly, getting some pushback from at least one Republican who matters to him. Florida Sen. Marco Rubio, whose state was a particular target in 2016, with four counties' elections systems infiltrated by Russian hackers, is going around McConnell to try to get a bill he's authored with Maryland Democrat Chris Van Hollen added to the defense authorization bill in the House-Senate reconciliation bill. Their bill would slap sanctions on Russia if it interfered in the future. "This conference committee represents this Congress' best—potentially last—opportunity to enact meaningful legislation aimed at deterring Russia from a repeat performance of its 2016 presidential election interference," the two senators wrote to the conference committee this week. (Republican Susan Collins has rebelled a little bit, too, by signing on to a bill from Democrat Mark Warner requiring candidates to report foreign offers of campaign assistance to federal authorities, but she doesn't count—McConnell can easily control her.)
Rubio has even complained to the press about the situation and the fact that "he can't even get a hearing in the Banking Committee on his DETER Act, which would impose stiff new sanctions if DNI says Russia interferes in 2020." So he's going behind McConnell's back and complaining to the media, which is more rebellion than you generally see in McConnell's conference (and Rand Paul doesn't count, because he's just not a serious person).
So there are a couple of reasons that #MoscowMitch has gotten under his skin so effectively. There's only one appropriate response to his outrage over it. Keeping using it!
It would really enrage him to lose his majority. Please give $1 to help Democrats in each of these crucial Senate races