Put up or shut up.   There is zero evidence of organized voter fraud in any significant numbers at the polling place.  Are there errors like double registration for students, or names not purged from a voting roll when a person moves (I may still be registered in Iowa for all I know), absolutely and I think its past time for a good look at voting processes and best practices.  But that is the concern of the states charged to run their voting system.

But make no mistake this is the vain and insecure Pres. Trump still trying to find validation.    

And you won't look at the facts, because you've already swallowed propaganda that all media is lying to you.   

http://www.snopes.com/illegal-immigrants-2008-election/