this is tuesday is primary day in west virginia this tuesday is primary day in west virginia, and the results could provide a preview of this year s congressional contest. but as cbs news scott mcfarlane reports, one reason to reveal how voters really feel about the importance of bringing home the bacon. in a congressional district that hugs the monongahela river in morgan town, west virginia, congressman david mcdavid mckin swimming upstream. he is using an old playbook with an endorsement from the popular governor and a list of hometown infrastructure projects he voted to secure in a state that needs them. we have between 30% and 40% of people in west virginia get their water from wells. we don t have a distribution system. reporter: he is one of about a dozen