In a resignation letter published Thursday, journalist Glenn Greenwald announced his resignation from The Intercept, the online news publication he co-founded in 2014, accusing editors of refusing to publish his latest article unless he removed all criticisms of Democrat presidential hopeful Joe Biden.

“The final, precipitating cause is that The Intercept’s editors, in violation of my contractual right of editorial freedom, censored an article I wrote this week, refusing to publish it unless I remove all sections critical of Democratic presidential candidate Joe Biden, the candidate vehemently supported by all New-York-based Intercept editors involved in this effort at suppression,” Greenwald wrote.

“The censored article, based on recently revealed emails and witness testimony, raised critical questions about Biden’s conduct. Not content to simply prevent publication of this article at the media outlet I co-founded, these Intercept editors also demanded that I refrain from exercising a separate contractual right to publish this article with any other publication.”

Greenwald went on to say he had encouraged his editors to publish their own critiques of his perspective, “[b]ut modern media outlets do not air dissent; they quash it.”

Unless his fellow left-leaning journalists, Greenwald has the integrity to call out his side for their Soviet-style suppression of dissenting views.