DNC rules only allow third-party groups to hold forums, with candidates speaking one at a time, not debates, with candidates onstage at the same time, not debates, with candidates onstage at the same time.

CNN and MSNBC are hosting two presidential forums on climate change next month, but activists say that isn’t enough. Rather than a format that that doesn’t allow interaction between the contenders, they’re demanding a head-to-head, DNC-sponsored debate to give the climate crisis the attention it deserves.

Party leadership, including DNC chair Tom Perez, is strongly against the idea, insisting it would be unfair to focus a debate on any single issue.'

Oh nice, let's fight in public.