I read an article about ACORN bussing homeless to vote.

Implicit in the article was the idea that the homeless should not vote.

Or maybe the problem was that ACORN was bussing them to vote.

Or maybe the problem was that they cleaned them up.

I suppose a clean up and a bus ride could count as bribery.

Maybe they didn't know how to read and the volunteers signed them in.

At what point does this become illegal, holding the hand of someone incapable and (for all intents and purposes) directing their vote.

At what point does it became suppression of the legal right of an American citizen to vote to deny them?