The pathways and origins of white nationalist thought were a matter of deadly importance in coverage of last weekend’s shootings. On this week’s On the Media, how mainstream punditry launders a tolerance for xenophobia. Also, the history of American presidents and media figures dismissing black and brown claims to power in a democracy. Plus, what calls for additional federal oversight in Puerto Rico mean for Puerto Ricans.

1. Tom Scocca [@tomscocca], politics editor at Slate, on the journalists, writers and political figures who cater to America’s racist id. Listen.

2. Adam Serwer [@AdamSerwer], staff writer at The Atlantic, on the catastrophic, deadly idea that “only white people are fit for self-government.” Listen.

3. OTM producer Alana Casanova-Burgess [@AlanaLlama] reports on the conversations some Puerto Ricans are having in Puerto Rico in a historic moment for the island, including demands more democracy — and what that means in a colonial context. Listen.