Sanders threatens to shut down briefing over repeated inquiries on new ban
Senate Armed Services Committee chair pledges oversight over change
President cites dubious claims of medical costs and unit disruption
But future unclear as some Republicans express doubts
NSOAPP no longer allows elders to identify as transgender
Reports suggest administration to tap foreign policy expert to post
'I’ve given to Human Rights Campaign, I’m for marriage equality'
Missouri Republican wants inclusion of measure in spending package