I heard Steve Gill talking about this on WLAC this A.M.
The point is, you have to be a citizen to vote. To become a naturalized citizen you have to pass a test in English. Thus, if you're a citizen you speak English and don't need an interpreter.
The other point is, these illegals are being led into the voting booth by Obama operatives and being told who to vote for, if they are even the ones pressing the buttons. They may be getting paid for their votes, just like in Chicago.