In my 94, when the igniton switch is turned to the start position it picks up the engine start relay in the power distribution center which, in turn, energizes the starter solenoid through a 40 amp fuse in the distribution center.
It also picks up the fuel shutdown relay which, in turn, picks up the fuel shutdown solenoid. This you should be able to see or hear if the starter relay is working and the fuse is not blown.
I am assuming that this also holds true for the 97.
If so, it could be a blown fuse, a bad relay or a bad ignition switch.
If the fuse is blown, you probably have a problem in the starter.
To check the starter relay, you could exchange it with one of the others in the distribution center like the horn relay. If the horn still works the relay is OK.
If you have a volt meter and a wiring diagram, you could do some voltage checks that would help locate the problem.
If it started OK the last time you used it and there was no indication of trouble when you shut it off, I would suspect the ignition switch. Does it feel any different when you turn the switch to the start position than it did before?
The reason I ask this is my 90 Chrysler New Yorker did the same thing one day. Turned the key and nothing happened, not even a click. It turned out that the ignition lock itself was broken. There is a projection on the end of the tumbler that the key is inserted into. When it is turned past the normal run position, it catches and rotates the start portion of the switch until it makes up the start circuit.
That projection was broken off and did not turn with the tumbler.
If that is the problem, you can remove the switch and take it to a dealer. They should have, or be able to get, the parts to repair it.
The Dodge uses the same switch.
Sorry to be so long winded but the way you describe the trouble it sounds like nothing is getting energized when you turn the key.
One other possibility would be the clutch interlock.