[zeugma]

Will it only verify on the sending side that the actual Congressman voted, or does there need to be redundant validation on the receiving side to prevent a hacked vote transaction?

You could use cryptographic tools to validate both sides. See my post that is probably immediately above this.

[Political Junkie Too]

Sounds interesting. You obviously are expert in this field. You should make a design, patent it, and make a grant proposal to the government.

Also, the first person to comprehensively find a way to extend this to absentee voting will become the next billionaire.

That is, of course, as long as it doesn't connect it to citizen validation like using a passport as the encryption key. Do that, and you won't make a dime.

-PJ