I remember reading this along with many other outrageous articles about voter fraud before the election but nothing was done about it.
Think about the election of 2000. Bush almost had Florida taken away from him. Gore claimed that the election was a fraud. Both parties were REALLY, REALLY upset about the whole thing.
And no one had any real interest in fixing the problem and making sure that the other party couldn't pull such a dirty trick again.
The parties like it dirty and muddy. No one wants to fix this.