No basis in fact.
Very few legal aliens vote illegally before becoming citizens. The same applies to illegals who are two steps away from voting status.
This is why this amnesty is such a betrayal. It will make a huge difference in the voting rolls in the years to come. Consider also how many Legal immigrant relatives these amnestied illegals will be be able to bring in once legalized.
No basis in "fact"?
With motor-voter, the number of illegal votes cast cannot be dismissed as "un-provable", in that how do you catch them, when no I.D. is required to vote, no checks are performed, etc., etc.
In Ohio, the dead, cartoon charachters, etc. have voted in the past, and it defies common sense that illegals are not voting.