Leading Off: Studies try to put a veneer of legitimacy on Cass’s political project. A powerful UK agency says bigotry based on appearance is A-OK. Top story lines for the week.

Leading Off: Trump ousts trans service members as his party mainstreams hate. Cass is called “unreliable” and unsupported by evidence. The top story lines as the week begins.

Veronica Esposito debunks some of the basic claims made by the UK’s “Sullivan Review.”