Conservative darling and former Alaska Gov. Sarah Palin has endorsed gubernatorial candidate Brian Murphy today, according to a post on her Facebook page. It is the first Palin endorsement in Maryland. Murphy is running for the state GOP nomination as a more conservative alternative to Republican former Gov. Robert L. Ehrlich Jr., who has most of the establishment GOP support in the state. So far, Murphy has not shown up in polls or had much of an impact on the race, but in other states a nod from Palin has given outlying candidates momentum. On the stump Murphy says both...