Just as the caravan of illegals is reaching the U.S. border on their way up through Mexico, there are 4,000 new national guard troops now there to stop them.

How do you encourage illegal immigration? You let them stay here.

How do you stop new waves of illegals? You don't let in the ones who just arrived, word will get out, and the next wave will not think it worth the risk to even try. It's really that simple.