Tail light issues

Problem solved - I think. My neighbor in the campground came over to help. I told him I had checked fuses, bulbs and voltage to sockets. So while he was there we checked the sockets for voltage again and they had voltage. I put a bulb in and wiggled it just right and it came on. I pulled the bulb and sure enough one of the contacts in the socket had broke. I didn’t realize I needed to check both contacts - when I checked that side no voltage. The crazy part when I checked the other socket and bulb the contact on my other socket was also bad. So both tail light socket contacts went bad at the same time (part of the contact broke off) but the turn signal and brake lights are still working ( they apparently work off the side of the socket that is still intact).