Yes. Several independent contacts are made in the ignition switch. The "run" contacts could be good, but not the "start" contacts, and the "ACC" contacts could be erratic. The "run" circuit (IGN1) does not make a connection when the key is in the "start" position, even in a perfectly good switch. "run" only gets power when you let go of the spring-loaded "start" position. Still, it is rarer for the ignition switch to go bad than the bulkhead and wiring connections, especially since you have been having other electrical problems, and you live in the east where most of your copper terminals are probably green (copper oxide doesn't conduct).