shemp
a flimsy character...perfidious and despised
As an Australian what I am shocked about is that people know who has voted. In Australia voting is compulsory, but who you have voted for is secret. And if you fail to vote that is not published either.
They don't actually know who you voted for. But in some states, whether or not someone voted in an election is public record. So they know that if you didn't vote in the primary election, you didn't vote for Trump.
The whole thing is to increase voter turnout, and to make you feel guilty if you didn't vote, which might make you more receptive to mailers looking for donations.