Nothing. Literally nothing. It's impossible to change the voting systems in such a short time, barring extraordinary information.
The struggle against easily rigged voting machines is at least 15 years old, dating from the Help American Vote Act. You would need significant new evidence, above and beyond, say, the known successes of how to rig a voting machine, in order to change the current attitudes. A simple feeling of worry is not enough.
Movie plot example: things could change if we find that all of the Diebold-based voting machines have an on-board chip that can change receive text messages to change the result.
