He described his enforcement tactics and orders. Deport the known criminals, empty the jails. That's the first priority. Enforce the laws on others - who knows how many and how fast that process runs, have to wait and see. As the law is getting enforced, Congress might change the law. He can't predict what happens. Nobody can.
One of the liberals on the CNN panel said there are more than 80 million people in the country either as illegals, or them plus their families. More than 80 million!
I live in CA. and I can believe there are 80 million easily!!!