Peter Daou, the chief executive of Shareblue, an online venture described by the New York Times as “Hillary Clinton’s outrage machine,” blasted Sanders on Twitter this week.

“I’ll be crystal clear: Bernie Sanders has absolutely no business determining the course of the Democratic Party after the harm he did to us,” Daou wrote in one tweet.

“Until certain Dems get over the denial of how badly Bernie damaged Hillary’s public image, we will make little progress as a Party,” he opined in another.

Daou’s hail of tweets raised eyebrows because, although he held no position with the Clinton campaign, Shareblue functioned as a de facto adjunct of the official effort.