Regarding your editorial “How to Re-Elect Trump” (June 25) on the expulsion of White House Press Secretary Sarah Huckabee Sanders from the Red Hen restaurant because she serves in the Trump administration: Where is Emily Post when we need her? Clearly restaurants need to prominently display the owner’s political bias, similar to “no shoes, no shirt, no service” so prospective patrons can decide whether to risk entrance. Patrons should be further advised that any expectation of enjoying a quiet meal may be interrupted by spontaneous protest from other patrons or third parties.

Jon...