How many 'dead' people voted for Trump? I can't see it being a one way thing. Remember in the USA you register as either a democrat, republican or independent supporter before you cast your vote, sometimes months in advance, so this probably happens all the time. The link says 19 people who had died were found to have voted for Clinton in one of the primaries so I can hardly see it making a difference in 100s of millions. If it is that close every vote will be checked anyway it has happened before!