I suspect that it actually suppresses the vote of the overconfident liberal voter and inspires the broken-glass Republicans to get out on election day.
Thats why the Hezbocrats keep scratching their heads come election day and whining about somehow the republicans stole elections.
1) They get their hopes up from biased, tainted polls and cheerleading articles by the MSM. They start believing their own lies about landslide victories.
2) All the unemployed liberals rush to the election stations in the first couple hours because they have nothing better to do, thus early exit polls favor the hezbocrats.
3) Most republican voters are quiet until election day. But after months of listening to all the B.S. the Dumpocrats plan to pull if they win, they head out and click on the name with the (R) on the ballot, and head back to work all through the day steady & surely.
4) Once the votes are counted, the repubican wins, and then the hezbocrats cry about fixed elections and suppressed votes.