No Kings 2 is being organized by a big tent of grassroots and advocacy organizations. One of the most prominent players is Indivisible, the activist group that sprang to life in the early days of the first Trump administration, and which now counts 2,500 distributed, local chapters nationwide.

Rolling Stone spoke to Indivisible co-founder Ezra Levin last week, in advance of No Kings 2 unveiling today. The protest is planned for Oct. 18 — in the aftermath of an unpredictable showdown over government funding that could lead to a partial government shutdown by the end of the month.

I expect No Kings 2 to be the largest protest of the year. We had 5 to 6 million people across 2,169 communities turn out for No Kings 1. It was wildly successful. People who might have been on the sidelines for No Kings 1 probably had some FOMO. And the good news is: We’re doing it again. We’re going to pull out even more people.