I hope those were republican plants...turn about is fair play.
Most likely, they were illegal aliens.
Probably not, illegal immigration is not wanted by the little people in both parties. Here in Hazleton Pennsylvania, the Republican Mayor won with 90% of the vote because of his tough stance on the issue. Not only that, he won the democratic primary as a write-in candidate. This is a home-run issue if someone can get traction with it.