Its very easy. Rubio lies from his heart. He did it to us originally to my face in June of 2010 in Lake City, Florida.
Now he lies to us by omission. He talks a good game about what he would do well into the future for things like enforcement and guest, or work, visas but is totally silent on what to do about the present.
HE LIES TO US FROM HIS HEART, and that is unforgivable because he will do it again.
He lies from his heart because he thinks the average White American is an idiot. His disdain for all of us is quite visible now.
I like that phrase. I think you have the other half of the answer, or the one below the political money answer. Very astute I think.