The way in which some Sanders supporters advocate for their candidate has made news across the pond:
After the 25 January Democratic town hall, Emily Nussbaum, television critic for the New Yorker magazine, tweeted some positive feedback for Hillary Clinton.
"I'm into Hillary, obviously, but I genuinely thought she did really well tonight," Ms Nussbaum wrote.
About a half an hour later, she followed up with this: "Man, the Feel The Bern crew (as opposed to Bern himself) is such a drag. Say anything pro-Hil & they yell 'bitch' & 'psycho.' V idealistic!"
Others - including a number of prominent members of the media - followed with their own reports of seeing Sanders supporters deploying vicious rhetoric towards anyone questioning the Vermont senator or his backers.
One female Sanders supporter is having a problem with all of this:
Kathleen Geier, a freelance contributor to The Nation and herself a Sanders supporter, says while she has gotten her fair share of ugly online comments from male Clinton supporters, the level of vitriol coming from what she calls a "tiny minority" of Sanders boosters troubles her.
"I think they're doing harm to the cause," she says. "I haven't seen people treat Obama supporters like this, or supporters of other male establishment candidates - just Hillary. So it's definitely misogyny."
And then there was the whole N-word thing:
"I've gotten everything from 'shill', 'paid infiltrator', to flat out having somebody actually call me a N***** in the midst of this," says Elon James White, CEO of This Week in Blackness, who has been critical of Mr Sanders' record on race.
"They harass and try to take away the credibility from the people who question Mr Sanders."
Similarly, after Atlantic author Ta-Nehisi Coates wrote a story criticising Mr Sanders for saying that reparations for African Americans is too "divisive" an issue, he was deluged by negative responses, as was editor and author Jamil Smith of The New Republic, for his own critical piece about Mr Sanders and his trouble appealing to minority voters.
Fortunately, the Sanders campaign is aware that such behavior might end up not reflecting well on them, so they are taking steps:
The night of the 25 January town hall, even representatives for the Sanders campaign felt compelled to address what was happening online between Clinton and Sanders boosters.
"If you support @berniesanders, please follow the senator's lead and be respectful when people disagree with you," wrote Sanders press secretary Mike Casca on Twitter.
A Sanders communication director in New Hampshire chimed in as well: "Let's all #FeelTheBern respectfully -- no place for misogyny or vitriol."
Asked to elaborate on the campaign's response, BBC News received this statement: "Sen Sanders is committed to running a positive campaign on the issues and we encourage all of his supporters to stick to that message."