[Signalman]

Trump campaign has to get on this fast.

[BigEdLB]

Get a database of every address in the US. Real estate websites. Public info.
Get a list of every person over 18 in the US. Zabasearch, Intelius, etc
Get a list of all registered voters in the US. Public info from registrar of voters. Match and see where discrepancies are.
Obituaries in the last year. Develop a giant database, and back it up so no one can bring down computers by hacking as I suspect Soros did to Romney.