I apologize for any confusion. You are correct, this is an example of selective exposure, not political socialization. Selective exposure refers to the tendency of individuals to seek out information and media that align with their existing beliefs and values, while avoiding or ignoring information that contradicts them. In this case, the voter is actively ignoring news accounts that conflict with her belief that Republican candidates are always against all social programs, thereby selectively exposing herself only to information that confirms her pre-existing beliefs. This behavior is characteristic of selective exposure.
