Chosen Solution
Parked car at work, got done with work, all dash light came on normally, turned the ignition to start, nothing. Towed car home, replaced entire ignition switch assembly, let the car relearn, nothing. jumped the pins on starter relay starter cranked, replaced relay, nothing. Any Ideas????
Sounds like it must be open wiring between ign. switch and relay somewhere. If automatic trans it may be the interlock switches that prevent starting except in neutral or park positions (typically). I would try jiggling the shifter first to see if it will help get a complete circuit to your apparently good relay.